The thing to compare here is not answer quality, it is what the meter counts while the answers arrive. Interviews Chat is reported to sell credits where one credit covers one minute of copilot session time, so the clock runs for the whole round, while OfferPilot AI counts listening time only, the minutes the copilot is actually receiving interviewer audio. In the 50-minute panel traced below that is 50 billed minutes against 14. The catch is platform: Windows 10 and 11 only, no Mac build at all.
Everything attributed to Interviews Chat here is a reported figure taken from public pricing pages and checked on 31 August 2026, including the $19 starter tier. Credit allowances and tier names change between releases, so their own documentation is the authority. If it disagrees with this page, this page is stale.
One 50-minute panel, minute by minute
Two interviewers, a hiring manager and a senior engineer, on a call booked for 50 minutes. Behavioural questions, then a system design prompt, then your questions at the end. The column that decides the bill is the third one: how long somebody who is not you is actually speaking.
| Block | Wall clock | Interviewer speaking | Per-minute credits | Listening minutes |
|---|---|---|---|---|
| Lobby, second panellist joins, small talk | 0:00 to 0:04 | 0.5 | 4 | 0.5 |
| Both interviewers introduce themselves and the format | 0:04 to 0:08 | 3.0 | 4 | 3.0 |
| Walk us through your background | 0:08 to 0:13 | 0.5 | 5 | 0.5 |
| Two behavioural questions with follow-up probes | 0:13 to 0:24 | 2.5 | 11 | 2.5 |
| System design brief, constraints and traffic numbers | 0:24 to 0:28 | 3.0 | 4 | 3.0 |
| You design out loud, occasional clarifications | 0:28 to 0:40 | 1.0 | 12 | 1.0 |
| Failure-mode deep dive | 0:40 to 0:45 | 1.5 | 5 | 1.5 |
| Your questions, their answers about the team | 0:45 to 0:50 | 2.0 | 5 | 2.0 |
| Total | 50 min | 14 min | 50 credits | 14 min |
Fourteen against fifty. The two meters watched the same interview and disagreed by a factor of about 3.6, which is structural rather than a rounding artefact. For roughly 28 of those minutes the person talking is you. For most of the remaining eight nobody is saying anything a copilot could use, because a screen share is loading, or the second panellist is being fetched, or someone has muted themselves by accident.
The expensive blocks on a listening clock are not the ones people expect. Blocks two and five, the introductions and the design brief, are 8 minutes of wall clock but 6 of the 14 billed minutes. Those are the monologues, and also where a copilot earns its keep: the design brief carries the constraints you will be marked against, said once, at speed, while you are still writing down the first one.
What that ratio does to a daily allowance
Run the same panel against the two pricing shapes. Under a credit that equals a minute of session time, this round costs 50 credits whatever happens inside it, so divide whatever bundle the reported $19 tier includes by 50 and you have your number of panels.
Under a listening clock the allowance is daily rather than a pool:
- Pro, $39 a month, 3 hours a day. That is 180 listening minutes, so about 12 panels of the shape above in a single day, and a fresh 180 tomorrow.
- Ultimate, $69 a month, 6 hours a day. Roughly 25 such panels a day, which nobody will sit, so the ceiling stops mattering.
- Five panels in a busy fortnight. That is 250 session minutes on one meter and 70 on the other, spread over five days that each begin with 180 available.
- The 6-Month Pass, $249 once. Six hours a day for six months, which is the shape that suits a long search rather than one sprint.
The practical effect is less about money than rationing. When a round costs credits by the minute you start the copilot late and close it during your own answers, then reopen it when a question sounds hard, which is exactly the moment you have no attention spare for tool management. The Interview Copilot is meant to run from the first hello, because the minutes nobody is speaking to you are free.
The panel is the worst case for a listening clock, on purpose
A comparison that only shows the favourable example is not worth reading, so here is the direction the ratio moves. A panel is where the two meters come closest, because a panel has more mouths in it. Add a third and fourth interviewer, each introducing their team for four minutes, and interviewer speech can reach 30 minutes of a 60-minute round. Listening time still wins, but by about 2 to 1.
Go the other way and the gap widens. In a 45-minute live coding screen the interviewer reads the problem, adds two sentences on constraints, then goes quiet for half an hour while you work: perhaps four billed minutes against 45 credits, better than 11 to 1. If your pipeline is mostly technical screens the panel above understates the difference badly. If it is mostly chatty conversational rounds, shrink the 3.6.
Time one round you have already sat
Rewatch a recorded mock and hold a stopwatch that moves only while the other person talks. Most conversational rounds land between 20 and 35 percent. Technical screens land far lower.
Multiply by the rounds you actually expect
Not the rounds you hope for. Five panels at 50 minutes is 250 session minutes and, at 28 percent, about 70 minutes of speech aimed at you.
Price both numbers, not the headline
Divide the credit bundle by 250, then check the 70 against a daily allowance. One answer will look obviously wrong for your calendar, and that is the decision made.
Where the reported $19 tier is simply the better buy
Burn rate is an argument about volume, and plenty of people do not have volume. If you sit three interviews this month, a reported $19 beats $39 on the only axis that matters: 150 session minutes is a small number, and an efficient meter never gets the chance to pay you back. Nobody should buy the better unit economics of a plan they will open twice.
Three more honest points against the listening clock. First, a credit pool is usually bankable and a daily allowance never is: six hours a day is not 42 hours saved up for one brutal Thursday, so with four rounds stacked on one afternoon it is the daily cap to check, not the monthly price. Second, credits are predictable in a way heard minutes cannot be, because the bill depends on how talkative a stranger turns out to be. Third, whether Interviews Chat's clock pauses during silence could not be confirmed from public pages on the check date. If it does pause, every gap in the table above narrows. The same billing question, asked of a different competitor, is worked through on the LockedIn AI comparison.
Then the flat disqualifier. Windows 10 and 11 only. No macOS build, no Linux, no mobile app, no browser extension. If you interview from a MacBook, none of the arithmetic on this page applies to you and a cross-platform tool is your answer.
What the hidden overlay does and does not cover
The overlay is excluded from screen capture at the operating system level, so it is absent from Zoom, Teams, Meet, OBS and plain screenshots while staying visible on your own monitor, on every plan including the free one. That is the entire claim, and the edges are worth stating plainly: it does not defeat a webcam pointed at your face, a lockdown browser, eye tracking, a second-device camera, or a proctor sitting in the room with you. Where a process forbids assistance, no overlay changes that. Audio is transcribed on-device with Whisper, which is a privacy property rather than a detection one.
Check it against your own calendar
The free tier is 5 minutes of listening a day, no card required. Treat it as a compatibility test rather than a free interview: enough to confirm the overlay vanishes from your own test Zoom share, nowhere near enough to carry a 50-minute panel. Run it once, then redo the multiplication with your real numbers. Download for Windows, or compare tiers on the pricing page.
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