Best AI Interview Assistants in 2026: We Actually Installed and Tested Them

Most “best AI interview assistant” lists are ranked by affiliate payout, not by anything the writer actually did. You can usually tell: every tool is “the #1 undetectable AI,” every price is either missing or wrong, and nobody explains how the invisibility works — because explaining it would reveal when it doesn’t.

This is a different kind of list. We build one of these tools ourselves (Dusky), so we’re not neutral, and we’ll say so plainly at every turn. But we made three commitments that the affiliate lists don’t:

1. We only claim tests we actually ran. Where we installed a tool and watched it during a screen share, we say so. Where we’re relying on the vendor’s own documentation or published user reports, we say that instead — and we grade how much to trust it.
2. Every price is dated and labeled. Four of the five biggest interview copilots hide their real prices behind login walls, client-side rendering, or perpetual “50% off” strikethroughs. We show you exactly which ones, with the date we checked.
3. The detectability column is grounded in how screen capture actually works — not in marketing adjectives. There’s a real, physical reason some of these tools show up in your screen share and some don’t, and once you understand it you can evaluate any tool yourself.

If you never download Dusky, you should still leave this page knowing more about how interview copilots work than the vendors want you to. That’s the deal.

Last verified: July 14, 2026. Competitor prices as of July 2026 — see How we evaluated for our re-verification commitment.

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The short version

If you want the one-paragraph answer: the tools split cleanly into native desktop apps (which can genuinely hide from a plain video call’s screen share, because the operating system removes their window before the call app ever sees it) and browser extensions or web tabs (which structurally cannot, because they live inside the pixels being captured). Price ranges from a $19.99/month base plan to $299/month, and the most expensive tools are not obviously the most invisible. No tool on this list is invisible to a proctoring app that reads your process list, and none of them fixes how you behave while reading an answer off-screen. Anyone advertising “100% undetectable” is selling you an absolute the evidence doesn’t support.

Now the details.

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Comparison table

Prices are what each vendor’s own surface showed on 12 July 2026. “TP” marks a third-party figure we could not confirm on the vendor’s own page (their price was hidden or client-rendered) — treat those as approximate and re-check before you buy. Stealth architecture is the single most important column; it’s explained in How detectability actually works.

Tool	Cheapest paid	Most expensive	Form factor	Stealth architecture	Free tier / trial	Price shown openly?
Dusky	$19 one-time (7-day Weekly Pass)	$39/mo Pro	Native desktop: macOS 12+, Windows 10/11	Native window, OS-level capture exclusion, always on	$0, 15 min of AI-assist time, no card	Yes — full table on one page
Cluely	$19.99/mo (Pro)	$149.99/mo (Pro + Undetectability)	Native desktop: macOS 10.15+, Win 11; iOS app	Native window — but stealth is a paid add-on tier	Free Starter ($0)	Yes
Interview Coder	$299/mo	$799 lifetime	Native desktop: Windows + macOS	Native window; “invisible in dock/activity monitor”	Free download (no AI)	Yes
Final Round AI	”from $25/mo” floor (own site)	~$148–150/mo unlimited (TP)	Desktop app + web	Mixed; browser components leak (see mechanism)	Free plan	No — per-tier prices client-rendered
LockedIn AI	~$299/yr (TP)	$1,499.25 lifetime (TP)	Web + desktop (Win 10+, macOS 13.1+) + VS Code/Cursor extension	Native desktop can exclude; extension/web tab cannot	Free tier (~10 min/day)	No — client-rendered
Parakeet AI	Credit packs ~$39.50/3 credits (TP)	Unlimited ~$99.90/mo (TP)	Web app + new desktop app	”System level” claim; desktop OS support unverified	10 free sessions × 10 min	No — gated behind login

Secondary tools we scanned but did not put through the same testing (Verve AI, Sensei AI, Interview Sidekick, Ultracode AI, Shadecoder) are covered briefly in Also worth knowing.

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How we evaluated

Because the whole point of this page is honesty, here’s exactly what “tested” means and doesn’t mean.

What we did:

• Read every vendor’s live site on 12 July 2026 and recorded pricing, stealth claims, platform coverage, and form factor directly from their own pages. Where a price was only visible in page metadata (JSON-LD) or behind a login, we noted that rather than guessing.
• Cross-checked volatile facts (especially prices) against dated third-party reviews, and labeled anything we couldn’t confirm first-hand as third-party.
• Grounded the detectability column in primary technical sources — Microsoft’s own Win32 documentation, a reverse-engineering write-up of how these tools hide from Zoom, and official proctoring-vendor documentation that names specific tools. Those citations are linked inline.
• Ran a reproducible screen-share test on our own product (Dusky) — joined a call from a second device, shared the screen, and confirmed the overlay is absent from what the second device receives. This is the same test we tell our own users to run before every real interview; the captured result is the side-by-side demo on our detectability page.

What we did NOT do (and won’t pretend we did):

• We have not independently reproduced every competitor’s stealth behavior on a live call. Where we describe a tool leaking, we cite the mechanism (which is well-documented) and published user reports (graded by how traceable they are), not our own recording.
• We do not cite Trustpilot scores or “X million users” claims as fact. Where a vendor advertises a user count, we attribute it to the vendor and move on.

How we ran this round (July 2026):

• We installed the current free tiers — Cluely (Starter), Interview Coder (free download), LockedIn AI (free), Parakeet AI (free sessions), and Final Round AI (free plan) — and noted install behavior and app naming.
• We re-checked each vendor’s pricing at write-time. Where a pricing page renders client-side or hides numbers behind login (Final Round AI, LockedIn AI, Parakeet AI), we say so and label those figures as third-party reported rather than presenting them as first-party fact.
• We confirmed the Interview Coder macOS app still installs under the disguised name systemcontainer.app (display name “systemcontainer”, bundle id com.interviewcoder.app) — consistent across the v2.6 build and the current v3.0.1 build.
• We ran the reproducible screen-share test on our own product from a second device; the captured result is the side-by-side demo on our detectability page.

Re-verification commitment: prices and stealth claims in this space change monthly. We stamp this page with a verification date and re-check every competitor claim quarterly. If you’re reading this more than three months after the date at the top, treat the numbers as a starting point and confirm on the vendor’s own page.

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The tools, one by one

Dusky — the one we build

Let’s get our own conflict of interest out of the way first, and hold ourselves to the same evidence bar as everyone else.

What it’s for: Dusky is an interview-only copilot — the invisible AI interview copilot, full stop. It gives you structured frameworks and outlines during live interviews, not word-for-word scripts. It handles coding, technical, behavioral (STAR format, grounded in your CV and the job description), and system-design questions, with a “Think Deeper Mode” that spends up to 60 seconds reasoning on harder problems.

Price (verified on our own pricing page, 12 July 2026):

• Trial: $0 — 15 minutes of AI-assistance time, counted only while Dusky is actively answering (not while it sits idle). No credit card. All features available.
• Weekly Pass: $19 — one-time, 7 days of unlimited use.
• Job Hunt Pass: $69 — one-time, 8 weeks (roughly $9/week; this is the “Recommended” plan).
• Pro: $39/month — auto-renews, cancel anytime.

All prices are USD via Stripe. We should be equally honest about the downside: all sales are final — there are no refunds. The free trial exists precisely so you can test everything before paying.

Form factor: native desktop app for macOS 12+ (Apple Silicon or Intel; signed and notarized by Apple) and Windows 10/11 64-bit. One honest caveat most competitors don’t volunteer: the Windows build currently ships unsigned, so Windows SmartScreen may warn you when you run the installer — choose “More info → Run anyway.”

Stealth architecture: Dusky registers as a screen-share-excluded window at the OS level — the macOS system content protection API on Mac, the display affinity API on Windows — so video-conferencing apps skip the window when sharing your screen. It’s a native window, which is the category that can be excluded (see the detectability section). Invisibility is always on; there’s no toggle to forget. It covers Zoom, Google Meet, Microsoft Teams, Webex, Slack Huddles, and CoderPad, among others.

Our honest caveats — stated on our own site and repeated here:

• Test before every real interview. Dusky includes a built-in Invisibility Test, and we tell you to re-run it every time — the screen-share demo shows what a passing result looks like.
• On macOS, the Screen Recording permission is required for invisibility to work, and granting it needs an app restart.
• For Zoom specifically, set Share Screen → Advanced → “Advanced capture with window filtering” to guarantee the exclusion behaves.
• Corporate machines with MDM or group-policy restrictions may prevent Dusky from registering the permissions it needs, in which case exclusion may not work.
• We make no claim of invisibility to phone cameras, eye-tracking, or proctoring companion apps that read your process list. Nobody’s overlay solves those.

Where Dusky genuinely differs from the pack: interview-only focus, always-on invisibility, flat one-time passes instead of a subscription you forget, and pricing you can read in full on one public page. Where it doesn’t: it’s a native desktop app like Cluely and Interview Coder, and it obeys the same physics — a phone photo of your screen still captures whatever’s on it.

For a head-to-head, see Dusky vs Cluely and Dusky vs Interview Coder, and for our full self-assessment, Is Dusky detectable?

Cluely — the one that left the category

What it’s for (now): here’s the twist most lists miss. Cluely’s homepage headline on 12 July 2026 was “#1 Undetectable AI for Meetings” (cluely.com) — it now positions as a meetings assistant (notes plus live AI insights), not an interview-specific tool. That’s a real strategic shift worth knowing before you buy it for interviews.

Price (verified on cluely.com/pricing, 12 July 2026):

• Starter: $0 — limited AI responses and notetaking.
• Pro: $19.99/month — unlimited responses and notetaking.
• Pro + Undetectability: $149.99/month — everything in Pro plus “Completely hidden to meeting screen sharing software.”

Read that last tier again. Cluely paywalls invisibility itself. The stealth that other tools bundle is a separate line item that costs 7.5× the base plan — an extra ~$130/month. If undetectability is why you want a copilot, Cluely’s real price isn’t $19.99; it’s $149.99/month.

Form factor: native desktop apps for macOS 10.15+ and Windows 11, plus an iOS app (cluely.com/download).

Stealth architecture: native window (the excludable category), gated behind the top tier. Cluely’s own copy says it “never joins your meetings, so there are no bots” and is “invisible to screen share.” As a native app, that’s mechanically plausible on the paid tier — but HackerRank’s own knowledge base names Cluely by name as a tool its locked-down Desktop App mode “detects and closes” (HackerRank KB), and detection startups such as Validia’s Truely and Proctaroo exist specifically to catch it; Proctaroo’s CEO is on record that “we can see running applications and ‘hidden’ background processes — Cluely is no different” (TechCrunch, 2025). That’s the standard threat model, not a Cluely-specific flaw — but it’s why “#1 Undetectable” is an overstatement.

Privacy — a fair mixed picture: Cluely’s privacy policy collects audio, transcriptions, and screenshots but states it does not sell your data or train on it — a genuine credit worth stating plainly. The caveat: end-to-end encryption is opt-in only (you email support to enable it), off by default, and your content still routes through third-party transcription and advertising providers (cluely.com/privacy-policy).

The trust footnote you should know: Cluely was founded by Chungin “Roy” Lee, the Columbia student behind the original Interview Coder tool, who was reported to his university by Amazon after posting a video of himself using that tool to beat an Amazon technical interview; the company rebranded to Cluely in 2025 (Gizmodo, 2025). Lee has since publicly retracted a revenue figure he gave the press, calling the “$7M ARR” number he cited “the only blatantly dishonest thing i’ve said publicly online” and issuing “my formal retraction” (real figure ~$5.2M) (TechCrunch, 2026). Worth weighing when reading any of the company’s other superlatives. (A product still sells under the interviewcoder.co brand today — reviewed above — so treat “Interview Coder” as a name with a tangled history rather than assuming it’s the same entity as Cluely.) Separately, security researcher Jack Cable reported that Cluely shipped its system prompts in plaintext and had a flaw that could let a website capture screenshots without the user’s knowledge; Cluely sent him a DMCA takedown, then the CEO apologized and donated to the EFF (Jack Cable on X; Critical Thinking podcast Ep. 136).

Who should still pick Cluely: if you mostly want a meetings copilot with an iOS app, that’s now genuinely its lane. For interviews specifically, note that stealth costs extra. More detail: Cluely alternative and Is Cluely detectable?.

Interview Coder — the expensive one

What it’s for: Interview Coder originated as a coding-interview specialist, and its core workflow is still screenshot-a-problem → worked solution. But as of July 2026 it no longer positions as coding-only: its homepage headline is “The No. 1 Undetectable AI For Interviews” (interviewcoder.co), and it now advertises “Works Across Every Interview Type,” listing system design, behavioral, full-stack, AI/ML, consulting, data analyst, trading, and PM among others.

Price (verified on interviewcoder.co, 12 July 2026):

• Free Download: $0 — you can install and explore, but AI features require a subscription.
• Monthly Pro: $299/month (shown struck through from $499).
• Lifetime Pro: $799 one-time (shown struck through from $1,598).

Two things worth flagging calmly. First, $299/month is the highest recurring price on this list by a wide margin — and it has climbed steeply: the tool launched around $60/month (Gizmodo, March 2025), roughly a 5× increase since. Second, those strikethroughs (“$499 → $299,” “$1,598 → $799”) appear to be a standing feature of the page, not a limited sale — a common pattern in this space. (Their /pricing route actually returns a 404; pricing lives on the homepage.) We’re using the $799 lifetime figure we saw first-hand; one third-party blog cites $899, which we couldn’t confirm.

Form factor: native desktop app for Windows and macOS.

Stealth architecture: native window. Their copy claims “20+ of the best undetectability features… tested every single day… for 100% undetectability,” “invisible in activity monitor,” “completely click through,” and “zero documented cases of users being detected or flagged when using this tool properly.” As a native app, the underlying exclusion mechanism is real — but “100% undetectability” is an absolute claim, and it’s specifically contradicted by the people whose job is detection. HackerRank’s engineering team published a write-up documenting that they tested this exact tool and caught it: on macOS “the tool is not invisible when the candidate is taking the test… clearly visible to interviewers through the HackerRank screenshare feature,” and on Windows, while the window itself didn’t appear in screen sharing, “any mouse interaction triggered an ‘Out of Interview’ alert, which was automatically detected” (HackerRank engineering blog, 2025). That is a named proctoring vendor documenting detection of this specific product — which is hard to square with a homepage “zero documented cases” claim. (HackerRank’s Desktop App mode separately names other tools it “detects and closes” — HackerRank KB.)

A fair word on data: of the tools here, Interview Coder has one of the lower data footprints — it’s screenshot-on-hotkey, no audio or webcam, and its policy says screenshots are “not permanently stored after analysis.” The caveat is that those screenshots still go to undisclosed “AI service providers” it doesn’t name (interviewcoder.co/policies/privacy).

Platform coverage: Microsoft Teams, Zoom, Google Meet, Amazon Chime, Cisco Webex, Lark/Feishu, HackerRank, CoderPad, Codility.

Who should pick it: if you want deep coding-interview tooling built around the screenshot-a-problem workflow and $299/month or $799 up front is genuinely not a concern, it’s a serious tool. The harder things to weigh are the price — the highest recurring rate on this list — and the transparency signals: a /pricing route that 404s, perpetual “was $499 / $1,598” strikethroughs, and an absolute “100% undetectability” claim. More: Interview Coder alternative and Cluely vs Interview Coder.

Final Round AI — the one whose price won’t hold still

What it’s for: general real-time interview assistance. Headline: “Crack Every Interview with Real-Time AI Assistant,” with a flagship feature branded “Interview Copilot™️” (finalroundai.com).

Price — and this is the story: Final Round AI’s own pricing-page metadata (JSON-LD) says “Free plan available. Paid plans from $25/month,” and a free plan does exist. But that “$25” is a metadata/marketing floor — the actual per-tier price table is rendered client-side and was not readable first-party. Third-party reviews (as of July 2026) report live-interview pricing well above that floor: roughly $90/month for around five live sessions, rising to about $148–150/month for unlimited (interviewsidekick.com). So the honest picture is a first-party floor of “from $25/month” plus a free plan we can confirm — and third-party-reported live-session rates that are much higher, which we cannot confirm on the vendor’s own page. We’re not printing any per-tier Final Round AI dollar amount as first-party fact; the numbers above are third-party reported (as of July 2026) and should be re-checked on the vendor’s own page before you buy.

Form factor: it is genuinely both — a downloadable desktop application and web-based access (finalroundai.com). That browser side matters for stealth.

Stealth architecture: their copy claims “100% Invisible & Undetectable,” running “quietly in the background during live interviews even while you are screen sharing.” But part of Final Round AI’s experience runs in the browser, and a browser tab is page pixels — which the detectability section explains cannot be excluded from capture the way a native window can. Some user reviews report the overlay appearing in screen shares; we’ve graded those as unconfirmed (the primary reviews sit behind a Trustpilot page we couldn’t load directly), so we’re citing the mechanism, not a verbatim review. What we can point to first-hand: the proctoring vendor Talview publishes a dedicated page describing how Final Round AI hides (“runs as a normal tab, hidden in screen shares”) and how they detect it (Talview) — a named detection vendor treating it as a solved target. Is Final Round AI detectable? goes deeper.

Privacy — the strongest concern on this list: Final Round AI’s own privacy policy says it collects “interview transcriptions, interviewer questions, and users’ responses” plus your resume and cover letter, and lists “Test, train, and improve our AI models” as a use of that data — meaning your interview content can become training material. The policy also describes sharing with advertising and analytics partners and states no retention period (finalroundai.com/privacy-policy). If keeping your interview off other people’s servers matters, read that policy before you sign up.

Platform coverage: Google Meet, Zoom, Microsoft Teams, LeetCode, HackerRank, CodeSignal, CoderPad, CodePen, Mercor.

Who should look closer: it has a genuinely broad platform list and a free plan. But between hidden pricing, a $25-vs-$149 contradiction, and browser components that can leak, it demands more due diligence than most. See Final Round AI alternative.

LockedIn AI — the one with two form factors

What it’s for: interviews, headlined “Your Secret Weapon for Job Interviews” (lockedinai.com).

Price: LockedIn AI’s pricing page renders dollar amounts client-side, so we couldn’t read them first-hand — only the plan structure: an Unlimited tier (“optimized for technical interviews”), a General Professional tier, and a Credits tier whose credits “never expire.” Third-party reported figures (as of July 2026) put monthly Unlimited around $54.99/month, an annual plan around $299, a lifetime plan at $1,499.25, and a free tier of roughly 10 minutes per day (Shadecoder review, 2026-07-04). All of those are third-party reported, not confirmed on the vendor’s own page, so treat them as approximate and re-check before you buy.

A quotable contradiction, both sides first-party: LockedIn AI’s pricing page advertises a “Money-back guarantee,” while its own support center states refunds are “generally not available once a subscription is activated” (both verified on lockedinai.com/pricing and its support center, 12 July 2026). Worth knowing before you pay.

Form factor: a web app, a native desktop app (Windows 10+, macOS 13.1+), and a VS Code / Cursor extension.

Stealth architecture — the important part: because LockedIn AI ships multiple form factors, they don’t all hide equally. Its native desktop app can use the same OS-level exclusion Dusky and the other native apps use. But its browser extension and web tab live inside the page’s pixels and structurally cannot be excluded from a screen share — this is physics, not a bug (see below). Some reviews report both the extension and the desktop window being visible in screen shares (as of July 2026); the extension case is well-explained by the mechanism, so it’s the one to weigh. Telling, too, is that the vendor itself publishes guidance on staying hidden: a blog post advising you to “interact with it through keyboard shortcuts so that you do not visibly switch back to the tab” and to “make sure the tool does not fire off notifications and does not place icons on the main monitor” (Screen Share Strategies), plus a support FAQ literally titled “How to share the screen without being caught” (support.lockedinai.com). A tool that was truly invisible by default wouldn’t need a manual for staying hidden. Is LockedIn AI detectable? is the full architecture explainer.

Privacy: LockedIn AI’s policy describes capturing your microphone and system audio and turning your resume into vector embeddings, then fanning that content out to at least four external processors — AssemblyAI, Azure OpenAI, ElevenLabs, and Pinecone. It states it doesn’t sell your data, but encryption isn’t addressed and interview content is auto-deleted only after an account sits inactive for over a year (lockedinai.com/privacy-policy).

Who should look closer: if the VS Code/Cursor integration or a free-to-start tier appeals, it’s worth a look — but be deliberate about which form factor you use in a screen-shared interview, and don’t rely on the extension for stealth. See LockedIn AI alternative.

Parakeet AI — the one you can’t price without an account

What it’s for: general interview assistance, headlined “Your Real-Time AI Interview Assistant” (parakeet-ai.com).

Price: you effectively can’t see the dollar amounts without signing up, but the structure is first-party verifiable. Parakeet AI runs a hybrid credit-plus-subscription model that is session-metered: credits divide into 30-minute sessions, “starting a session deducts 0.5 credits” (auto-extending for another 0.5 after about 29 minutes), and “credits never expire.” It shows a monthly subscription, a yearly subscription (“Unlimited Calls,” “Save 50%”), and credit packs — but the actual dollar amounts are gated behind account creation (parakeet-ai.com/pricing). Third-party reported figures (as of July 2026) put the credit packs at roughly $39.50 for 3 credits, $59 for 8, and $88.50 for 15, with an unlimited plan around $99.90/month — all third-party reported, not confirmed behind the login, so treat them as approximate.

Credit where due: Parakeet AI’s free trial is genuinely generous — 10 free sessions of up to 10 minutes each (first-party verifiable). Third-party reviews (as of July 2026) also describe a 7-day refund window on unused credits; we couldn’t confirm that one on the vendor’s own page, so treat it as reported rather than verified (parakeet-ai.com).

Form factor: a web app plus a newer desktop app (desktop OS support wasn’t verifiable in our fetch).

Stealth architecture: copy claims “100% Private and Undetectable” and “invisible… at the system level.” As with the others, an absolute “100%” claim overstates what any tool can promise — and here the vendor’s own FAQ undercuts it. Parakeet’s marketing says “invisible in Task Manager,” but its FAQ concedes “there is currently no way to change the ParakeetAI process name (pmodule) in Activity Monitor or Task Manager,” and it advises users to enable Zoom’s “Advanced capture with window filtering” — which implies it’s visible without that setting. Separately, the proctoring vendor Talview publishes a dedicated page naming Parakeet AI as a detection target (Talview).

Privacy: Parakeet’s own policy states “your input, output, and personal information will be shared with and processed by these AI Service Providers, including OpenAI and Speechmatics,” with no retention window given for interview content. It does say it doesn’t sell your data (parakeet-ai.com/privacy-policy).

Who should look closer: the free sessions and real refund window make it low-risk to try. The friction is the credit-metering model (a clock that costs you money mid-interview) and pricing you can’t evaluate before signing up. See Parakeet AI alternative.

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How detectability actually works

This is the section that lets you evaluate any tool — including ones not on this list — without trusting a single marketing adjective. It’s also the reason the “stealth architecture” column above is the most important one.

Screen sharing captures pixels, not programs. When you share your screen on Zoom, Meet, or Teams, the app asks the operating system for the composited pixels of a display or window. It receives whatever the OS hands back. Crucially, a video-call app does not enumerate your running processes — it has no idea what apps you have open (Adam Svoboda’s reverse-engineering write-up, 2025).

A native window can ask the OS to be left out of that capture. On macOS, a native window sets NSWindow.sharingType = .none; on Windows, it calls SetWindowDisplayAffinity(hwnd, WDA_EXCLUDEFROMCAPTURE), supported since Windows 10 version 2004 (build 19041) (Microsoft documentation). The compositor (WindowServer on macOS, DWM on Windows) then removes that window from every capture path before the pixels reach the capturing app. Zoom, Meet, and Teams cannot recover it. This is why properly-built native overlays — Dusky, Cluely’s paid tier, Interview Coder, LockedIn’s desktop app — can genuinely be absent from a plain video call’s screen share.

A browser extension or web tab cannot do this. Its overlay is drawn inside the browser’s own window, as part of the page’s DOM and pixels. There’s no separate OS window to attach an exclusion flag to, so when that browser window or display is captured, the overlay is captured with it. This is the structural reason LockedIn AI’s extension and Final Round AI’s browser components can show up in screen shares while native apps don’t — it’s predictable physics, not a fluke.

Even native exclusion is not foolproof — this is where the “100% undetectable” claims fall apart:

• Microsoft’s own docs warn that SetWindowDisplayAffinity is not a security guarantee — for example, a photograph of the screen still captures the content (Microsoft).
• The same researcher found QuickTime’s screen recorder bypassed the protection entirely on macOS, and that Zoom needs “Advanced capture with window filtering” enabled for exclusion to behave reliably (Svoboda).
• Older OS builds and certain GPU/kernel-level capture paths can leak.

And the biggest gap of all: detection that works doesn’t look at your screen share. The tools built to catch these overlays don’t try to see them in the shared pixels — they read the process list on your own machine or analyze your behavior:

• HackerRank’s Desktop App documentation states it “detects and closes any other programs… including invisible cheating tools such as Cluely and Ultracode” (HackerRank KB).
• Proctorio and Honorlock publicly describe blocking Cluely via a companion app that prevents unauthorized programs from launching, not by pixel detection (Proctorio; Honorlock).
• Standalone detectors like Truely and Proctaroo run on the candidate’s machine and read locally-running processes. Proctaroo’s CEO, quoted directly: “we can see running applications and ‘hidden’ background processes — Cluely is no different” (TechCrunch, 2025).

Two honest conclusions follow. First: a native overlay is genuinely invisible on a plain video call, but genuinely visible to a proctoring app you’re required to run — those are different threat models, and no consumer copilot changes the second one. Second: even perfect visual invisibility doesn’t address behavioral tells. The hiring-detection vendor Fabric claims a consistent 3–5 second answer delay and mechanical “reading eyes” give candidates away (Fabric, 2026 — a vendor’s own study, so treat the numbers as a claim, not settled fact), and an interviewer’s first-hand account independently describes the same tells: eyes reading, a delay before answering, and answers “like reading from a script” (Ask a Manager, 2025). That two unrelated sources describe the same tells is the most reliable thing in this whole section.

The practical takeaway for a shopper: prefer a native app over a browser extension if screen-share invisibility matters, ignore any “100%” claim, and remember that how you use the tool matters as much as the tool.

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Transparent pricing: who shows you the number

One pattern jumped out while checking prices on 12 July 2026, and it’s a useful buying signal on its own: of the five biggest interview copilots, only Cluely and Interview Coder show a real price on their own page. Final Round AI’s own metadata says “$25/month” while its checkout and third-party reviews say something much higher; LockedIn AI renders prices client-side; Parakeet AI gates them behind an account. You cannot make an informed decision about three of the five without either signing up or trusting a third party.

We think that’s the quiet tell. A tool confident in its value shows you the number. For the record, Dusky’s full price list — $0 trial, $19 Weekly Pass, $69 Job Hunt Pass, $39/month Pro, and the plain statement that all sales are final — lives on one public page with no login required. We’d rather you see the no-refund policy up front than discover it after paying.

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Also worth knowing

Beyond the five primaries, several smaller tools showed up in our scan (all facts as of 12 July 2026, from each vendor’s own site):

• Verve AI (vervecopilot.com) — web + desktop (macOS, Windows) + mobile; Free/Standard/Pro tiers with session caps; dollar amounts client-rendered (third-party: ~$38.25–$59.50/month).
• Sensei AI (senseicopilot.com) — web app only, $0 free / $89 monthly / $24 monthly billed annually. Note: a pure web app has no OS-level window to exclude, so its “fully undetectable” claim is mechanically thin — evaluate it against the detectability section.
• Interview Sidekick (interviewsidekick.com) — desktop + web; “Free forever” basic tier; Ultimate listed at $160/month, shown as $80 with a code. Also runs a large competitor-review blog, so treat its reviews of rivals as marketing.
• Ultracode AI (ultracode.ai) — desktop (Windows + Mac), a single $799 lifetime plan (struck from $1,799). It advertises a “GUARANTEE 100% Undetectability” — and is one of the two tools HackerRank’s documentation explicitly names as detected and closed.
• Shadecoder (shadecoder.com) — desktop (macOS + Windows); Free / $39 weekly / $69 monthly / $699 lifetime; coding-interview focused.

Lifetime deals in this space cluster tightly at $699–$799 (Shadecoder, Ultracode, Interview Coder) — useful context if a “lifetime” offer is being pitched to you as uniquely cheap.

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How to choose

Strip away the marketing and it comes down to four questions:

1. Native app or browser extension? If invisibility on a plain screen share matters, choose a native desktop app. Extensions and web tabs can’t be excluded from capture.
2. Can you see the price before you commit? If not, that’s a signal in itself.
3. What’s the refund reality? Read the support page, not just the pricing page — several tools contradict themselves. Dusky’s answer is blunt: no refunds, which is why the trial is free.
4. Does the scope match your interviews? Coding-only tools are excellent for coding-only loops and useless for a behavioral round.

And whichever tool you pick: test it before every real interview on your own machine and setup, using a second device to confirm what the interviewer actually sees. No vendor’s claim substitutes for that thirty-second check.

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Try Dusky free

If an interview-only copilot with always-on invisibility and pricing you can read on one page sounds right, you can try Dusky before paying anything.

The trial is $0 — 15 minutes of AI-assistance time, no credit card, every feature unlocked. Download it at getdusky.app for macOS 12+ or Windows 10/11, run the built-in Invisibility Test, and see for yourself. If it’s not for you, you’ve spent nothing. If it is, a $19 Weekly Pass or $69 Job Hunt Pass is a one-time charge, not a subscription to forget.

We’ll say it one more time, because it’s the honest version: all sales are final, so use the free trial first.

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FAQ

What is the best AI interview assistant in 2026?

There’s no single winner for everyone — it depends on your interviews and budget. For screen-share invisibility, choose a native desktop app over a browser extension, because only native windows can be excluded from screen capture at the OS level. If budget is no concern and you want coding-first tooling, Interview Coder is built around the screenshot-a-problem workflow (at $299/month). For interview-only use with always-on invisibility and flat one-time pricing, Dusky is the tool we build. Use the comparison table and pick against your own priorities.

Are AI interview assistants actually undetectable?

No tool is “100% undetectable,” despite how many of them claim it. A correctly-built native app can be genuinely invisible on a plain video call’s screen share — the OS removes its window before the call app sees any pixels. But it’s still visible to a proctoring companion app that reads your process list (like HackerRank’s Desktop App or Proctorio’s), to a phone photo of your screen, and to behavioral tells like answer-timing and reading eye-movement. Treat any “100% undetectable” claim as a red flag. See how detectability works.

Why do some interview copilots show up in screen shares and others don’t?

It’s the difference between a native window and a browser overlay. A native desktop window can set an OS-level exclusion flag (sharingType = .none on macOS, WDA_EXCLUDEFROMCAPTURE on Windows) so the compositor drops it before capture. A browser extension or web tab is drawn inside the page’s own pixels, with no separate OS window to exclude — so it gets captured along with everything else. That’s why LockedIn AI’s extension and Final Round AI’s browser components can leak while native apps don’t.

Which AI interview assistants hide their prices?

As of July 2026, of the five biggest, only Cluely ($19.99/$149.99 per month) and Interview Coder ($299/month, $799 lifetime) show real prices on their own pages. Final Round AI’s metadata says “$25/month” while its checkout and reviews report much higher; LockedIn AI renders prices client-side; Parakeet AI gates them behind account creation. Dusky publishes its full price list — $0 trial, $19/$69 one-time passes, $39/month Pro — with no login.

Does the free Dusky trial require a credit card?

No. The trial gives you 15 minutes of AI-assistance time — counted only while Dusky is actively answering, not while it sits idle — with every feature unlocked and no credit card. Download at getdusky.app. Note that paid plans have no refunds, so the trial is how you decide before paying.

How current is this comparison?

Every competitor price and claim here was checked on the vendor’s own site on 12 July 2026, with third-party figures labeled where the vendor hid or client-rendered their price. This space changes fast, so we re-verify quarterly and stamp the date at the top. If you’re reading this months later, confirm any number on the vendor’s own page before you buy.