There are more of these tools than there were a year ago, they all claim the same things, and the marketing pages have converged to the point where you can't tell them apart by reading them.
This ranks the five worth your time, on criteria stated up front, using prices and features from each vendor's own site.
We make Velin AI, which places first here. You should discount that accordingly, so two things to help: every claim below is traceable to a competitor's own page, and each entry says plainly where that tool beats Velin. There's also a section at the end listing the situations where you should buy something else — those are real, not decoration.
What this is ranked on
Scope — does it cover the whole loop, or one round of it? Most interview processes have a coding stage, a system design stage and a behavioural stage.
Invisibility, as documented — whether the vendor explains the mechanism or just asserts the outcome. We haven't tested these against proctoring software and neither has anyone else publishing lists like this.
What you actually pay — including whether the plan that does the job is the plan on the homepage.
Transparency — a tool that won't show you a price before signup is telling you something.
Usage limits — credits and session caps surface at the worst possible moment.
The ranking
1. Velin AI — best overall for the full interview loop
Covers the whole process rather than one stage: live mode follows conversation and answers without a prompt, capture mode reads problems off the screen, and invisible notes let you keep prepared material on screen for behavioural rounds — the stage most tools ignore entirely.
Invisibility is documented as mechanism, not outcome: absent from dock, menu bar and Activity Monitor, running as the process V Module, click-through, never the active window. And it's included on every plan rather than upsold.
The differentiator nothing else has: mouse gesture control, so you can operate it without keyboard input on platforms that log keystrokes. 57+ languages, unlimited session length, unlimited usage.
$34/month, $228/year, or $324 once — the only lifetime option under $700 here.
Where others beat it: no mock interviews (Final Round, LockedIn), no mobile app (Cluely, LockedIn, Parakeet), no editor plugin (LockedIn), no multi-monitor support (Interview Solver), and three tools cost less per month.
2. LockedIn AI — best reach and the widest feature surface
The most platforms of anyone: Windows, macOS, iOS, Android and four browsers. Plus VSCode and Cursor integration, HireVue support, mock interviews with competency scoring, 50+ languages with accent recognition, and LockedIn Duo for remote assist from a trusted helper.
Publishes 116ms average response time — faster than Velin's stated 120ms, and the quickest figure anyone here claims. 1M+ users against 2,739 reviews, which is a proportionate ratio.
What keeps it off the top: no published pricing. Tier names only — Unlimited, Credits, Lifetime, General, Professional — so you discover the cost partway through signup. A Credits tier next to Unlimited implies metered usage, and invisibility is described by what the interviewer sees rather than how it works.
3. Final Round AI — best if you need to prepare, not just perform
From $25/month, cheaper than Velin, with the broadest prep tooling here: AI mock interviews with instant scoring, an AI resume builder, post-interview reports, speech clarity and engagement analysis, 26+ languages. Cross-industry rather than engineering-only, which matters if you're interviewing in consulting, finance, sales or product.
Claims 10M+ users and 10k+ jobs secured — their own unaudited figures, but the product is clearly widely used.
What keeps it third: breadth over depth. Invisibility is one feature among many and is described as "nothing the interviewer can see," with no mention of dock, Activity Monitor or process naming. Tiers above the $25 entry aren't published. Subscription only.
4. InterviewMan — best price for a serious tool
$144/year — $12/month effective, or $30 monthly. The cheapest real option in this category, and not a stripped one: unlimited minutes, unlimited session duration, invisible in dock and Activity Monitor, "30+ advanced undetectability features" including WebRTC blocking, and the widest named platform list of anyone — including Lark/Feishu and Amazon Chime.
57,000+ users and 4.9★ from 257 reviews. That review-to-user ratio is the most believable social proof on this page.
What keeps it fourth: part of the stealth runs through a two-device mode, so some of it depends on a second device rather than the machine you're on. They claim the product "has never been detected," which nothing can support. No lifetime option, no invisible notes, no stated multi-language support.
5. Cluely — best for meetings, and the cheapest way in
$19.99/month for unlimited AI responses and unlimited meeting notes, a genuinely free
tier with no signup, and an iOS app — the only mobile-native option here. Built around
meetings: notes, recaps, participant tracking, 12+ language transcription, answers on
Cmd/Ctrl + Enter.
For work calls where nobody is checking, this is the best value on the page and the framing is more comfortable than an interview tool.
What keeps it fifth for interviews: undetectability is a separate tier at $149.99/month. The $19.99 plan isn't hidden. If you're buying for interviews, Cluely's real price is $149.99 — the most expensive monthly option here except Interview Coder.
Also considered
Interview Coder 2.0 — genuinely capable and undetectability-first, with strong specifics and 150,000+ claimed users. Left out on price: $299/month or $799 lifetime, several times anything above.
Parakeet AI — the only browser-first option, and the only one supporting phone interviews via Google Voice. Left out because usage is metered in credits, prices aren't published, and browser delivery is a weaker position in a monitored environment. Still the right answer if you can't install software.
Interview Solver — focused, honest about limits, and the only tool advertising multi-monitor support. Left out on scope (LeetCode and system design only) and because its invisibility is stated as applying to Zoom 6.16 and below.
Side by side
| | Price | Undetectability | Scope | Mobile | Lifetime | |---|---|---|---|---|---| | Velin AI | $34/mo | Included, OS-level | Full loop + meetings | No | $324 | | LockedIn AI | Not published | Included, outcome-described | Full loop + prep | Yes | Tier exists | | Final Round AI | From $25/mo | Included, outcome-described | Full loop + prep | No | No | | InterviewMan | $12/mo annual | Included, two-device mode | Interviews | No | No | | Cluely | $19.99/mo | $149.99/mo tier | Meetings | Yes (iOS) | No |
Buy something else if…
- You want to practise before the interview — Final Round AI or LockedIn AI. Velin has no mock interview mode, no resume builder and no scoring.
- You need it on a phone — Cluely (iOS), LockedIn AI (iOS and Android) or Parakeet AI in a mobile browser.
- You can't install software on the machine you'll use — Parakeet AI is the only browser-based option.
- You want help inside your editor — LockedIn AI's VSCode and Cursor plugins.
- Price is the only thing that matters — InterviewMan at $12/month annual.
- You mainly do meetings, not interviews — Cluely at $19.99, and skip the undetectable tier.
Which to buy
For most job seekers running a full interview loop on their own machine, Velin AI covers the most ground: coding rounds, behavioural rounds and meetings, with invisibility documented specifically enough to check yourself and a lifetime option that beats every subscription here over two years.
If your problem is preparation rather than performance, buy Final Round AI. If you need reach — mobile, browsers, your editor — buy LockedIn AI and accept signing up to see the price. If the budget is fixed, InterviewMan at $12/month is the most product per pound in this category.
Going deeper: the cheapest tools ranked on price alone, the most undetectable ranked on documentation, and the best for coding rounds.
Competitor pricing and features were taken from each company's own site on 12 August 2026. LockedIn AI and Parakeet AI do not publish prices. User counts are vendors' own unaudited claims. No tool here was tested against proctoring software.