Yes, you can run a live interview copilot without handing over a card. The split that decides whether that is useful is not free against paid, it is a pool against a refill. Most free access in this category is a one-time trial that empties and stays empty, and the reported allowances cluster around ten to fifteen minutes, once. OfferPilot AI takes the other shape: 5 minutes of listening time every day, refilled tomorrow whether you spent it or not, no card at signup. The rest of this page sets those two models side by side, then gives you a script for spending a budget that small.
A pool empties. An allowance refills.
A one-time trial forces a decision you are not ready to make. You have ten minutes, once. Do you burn them on a Tuesday evening checking that the audio capture works with your headset, or do you save them for the Thursday screen and find out mid-call that the tool cannot hear your interviewer? Both answers are bad. The trial is your setup test and your only real use at the same time, and it cannot be both.
A daily allowance separates those two jobs. Tuesday's test costs nothing on Thursday, because Thursday arrives with the same five minutes it would have had anyway. That is the practical difference, and it matters more than the raw size of the number. Five minutes a day is thirty-five minutes across a week of interviews. Ten minutes once is ten minutes forever.
A second difference hides in the signup form. A trial that asks for a card is a subscription with a delayed start date, and remembering to cancel is your job. A tier with no card on file has no mechanism to charge you, which is a stronger guarantee than any wording on a marketing page.
What the major tools are reported to give away
Everything in this table is a reported figure, taken from vendor pages and third-party reviews and checked 2026-08-31. Free tiers in this category change faster than any guide can track, and for some tools the reports genuinely conflict with each other, so read the table as a map of the shapes rather than a price list. Verify on the checkout screen before you rely on a number.
| Tool | Reported free allowance | Pool or refill | Card at signup |
|---|---|---|---|
| OfferPilot AI | 5 minutes of listening time per day | Refills daily | Not required |
| Final Round AI | Reported as one 10-minute trial session, with no permanent free plan | Pool, once | Reports vary, read the checkout screen |
| Sensei AI | Reported as 15 minutes per free session | Capped per session | Reported as not required |
| Cluely | Free Starter tier, reported as a small number of AI responses per day with short output caps | Refill, but metered in responses, not minutes | Reported as not required |
| LockedIn AI | Reported as 10 minutes per day, though some sources describe no free tier at all | Reported as a daily refill | Reported as not required |
| Verve AI | Reported as a forever free plan with no published numbers | Unclear from public sources | Reported as not required |
Two things fall out of that table. First, the headline number is not the comparison: a tool metered in AI responses with a character cap on the output is a different product from one metered in minutes, and neither converts cleanly into the other. Second, check what a free tier leaves out before you check its size. Cluely's screen-capture invisibility is reported to sit on a separate Pro plus Undetectability tier at $149.99 a month, a reported figure checked 2026-08-31, which means the free Starter tier and the cheaper paid tier are reported not to hide the overlay during a shared screen at all. That is the feature most people assume is included by default.
For contrast, capture exclusion here is on every plan including the free one. Be clear about what that does, though. The overlay is excluded from screen capture at the operating system level, so it is absent from Zoom, Teams, Meet, OBS and screenshots while staying visible on your own monitor. It does nothing about a webcam, a lockdown browser, an in-person proctor, eye tracking, or a second phone camera pointed at your desk. Free or paid changes none of that.
Five minutes of listening time is not five minutes of call
This is where the two metering models separate. A wall-clock meter starts when you open a session and keeps running through the introductions, your own answers, the interviewer's monologue about company culture and the pause while somebody hunts for the shared document. Five wall-clock minutes is gone before the first real question. Listening time advances only while interviewer audio is actually arriving, so the same five minutes is 300 seconds of question stems.
Time a few stems yourself before you trust anyone's estimate, this page included. A behavioural prompt spoken out loud usually lands somewhere between fifteen and thirty seconds. A system design prompt with the constraints read aloud can run past a minute. So 300 seconds is roughly five long prompts or fifteen short ones, and the variance comes from how your interviewer talks, which is not something you control.
A spending script for a 5 minute daily budget
Spend zero before the call starts
Preparation costs no listening time at all. The company Q&A generator builds a question bank for a named company and role, and reading it takes nothing off the daily clock. Anything you can already answer from that bank is a question you should never spend live seconds on.
Pause through the human parts
Hold M to pause the mic during the greeting, the recruiter's pitch, the logistics, the part where somebody's dog barks. No audio arriving means no clock moving. This single habit is the difference between the budget covering one round and covering three.
Buy stems, not conversations
Let it hear the question, then pause again the moment the interviewer stops talking. You do not need a draft of your own voice, and your answer is usually several times longer than the question that prompted it. Buying the stem alone is where most of the saving lives.
Take second opinions, never second questions
Grok, DeepSeek and Gemini all answer every question in parallel, once. Cycling the answer mode with Ctrl+Alt+Q is a display toggle that re-asks nothing and costs no extra seconds, so when the first draft reads badly, switch rather than replaying the question. Gemini is the one to read first on coding problems.
Hold ninety seconds back
Reserve roughly a third of the budget for the question you did not prepare for, which is the only question where a live draft really earns its keep. Reaching the last five minutes of the call with time unspent is a good outcome, not a waste.
Treat tomorrow as a rehearsal slot
The allowance comes back. Run the round again the next day with the questions you fumbled, read aloud by your own PC so they reach the copilot as sound rather than text. That is a use a one-time pool can never fund.
Here is the script applied to a forty-five minute recruiter screen, with the arithmetic visible so you can substitute your own numbers. Introductions and the company pitch take about six minutes and cost 0 seconds, because the mic is paused. Seven questions with stems averaging twenty seconds cost 140 seconds. Three short follow-ups at roughly ten seconds each cost 30 seconds. That is 170 seconds out of a 300 second budget, leaving 130 seconds of reserve for the two questions that go sideways. The whole call fits, with room left over.
Now break it deliberately. If your interviewer narrates for two minutes before each question, seven questions cost 840 seconds and the budget ran out at question three. If the round is a live coding session where the problem is read aloud once and then discussed for forty minutes, the same collapse happens for a different reason. When the arithmetic fails like that, the honest conclusion is not that you spent it wrong. It is that this round needs a paid tier or no copilot at all.
When five minutes a day is the wrong tool
A full onsite loop is the clearest case. Four rounds in one day still share a single five minute allowance, because the refill is daily and not per interview. For that day you either buy time or accept that the copilot covers one round and sits idle for three. A free daily tier is a fit test and a rehearsal budget. It is not a plan for a heavy interview week, and pretending otherwise wastes the day rather than saving it. If a loop is already booked, look at the daily caps on the paid tiers and decide the night before, not during round two.
The harder limitation is the operating system. This is a Windows 10 and 11 desktop application. There is no macOS build, no Linux build, no mobile app and no browser extension, so if you interview from a MacBook then no free tier here helps you and the right move is to compare tools that ship for your platform. A generous free allowance on software that will not install is worth nothing.
One more case worth naming plainly. If the round is a proctored assessment whose rules say no assistance, a free tier does not make that acceptable and neither does a paid one. What this tool is for is preparation, live support on ordinary calls, and accessibility for people who need help catching a fast question or a heavy accent. An overlay hidden from screen sharing is still visible to a proctor sitting beside you, and an honest page says so instead of selling the opposite.
Four things to read on the signup screen
- Does a card field appear before the product does? If the card comes first, you are starting a subscription with a delayed charge, not testing a free tier. Find the renewal date before you find the download button.
- Does the clock count the session or the speech? Ask what happens to the allowance during silence. If nobody will answer that in writing, assume it counts wall-clock time and divide the advertised number by three.
- Is invisibility included or upsold? Some tools are reported to gate screen-capture exclusion behind a higher tier, which makes the cheaper plans useless in exactly the situation you wanted them for.
- Does the allowance refill? The word trial almost always means once. The words per day mean it comes back. If a pricing page uses neither, that is the question to send to support before you sign up.
A free tier is not a discount. It is a sample of the metering model you would be buying, and the metering model is the product.
Short version: reported one-time trials in this category run to about ten or fifteen minutes and then stop, while a daily allowance of five minutes of listening time is smaller per session and larger in every other way. Spend it on question stems, pause through everything else, and let tomorrow's refill pay for your rehearsals. To run that test on your own machine tonight, the free tier is a download away with no card, and support@offerpilotai.ink will answer questions about what the clock counts.
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