StealthCoder vs LockedIn AI
The LockedIn AI alternative for coding interviews
Updated June 2026
LockedIn AI is one of the pricier options at around $55 a month, and it runs on a credit or time model, so you are watching a clock during your interview. Reviewers report 4 to 5 second answer lag, which is brutal when an interviewer is waiting, plus answers that read like generic GPT and recurring refund complaints. Its Trustpilot sits around 3.7. StealthCoder is $15 a month on the annual plan, returns a working solution in under 2 seconds, and is unlimited, not metered.
Built by an Amazon engineer who cared more about not getting caught than about a flashy feature list.
StealthCoder vs LockedIn AI, side by side
| Feature | StealthCoder | LockedIn AI |
|---|---|---|
| Price | $15/mo billed $180/yr · $40 monthly · 7-day free trial | ~$54.99/mo credit / time-based · e.g. 20 hrs per 3 months |
| Platforms | Mac, Windows | Mac, Windows, Chrome ext |
| Coding / LeetCode | ✓ | ✓ |
| System design | ✓ | ✓ |
| Online assessments | ✓ | ✓ |
| Invisible on screen share | ✓ | ✓ |
| How it stays hidden | Native desktop app, keyboard-only, nothing clickable | Overlay + browser extension, audio streaming |
| AI model | Latest Claude models | Unverified |
LockedIn AI details from public sources, last checked June 2026.
Why engineers pick StealthCoder over LockedIn AI
- →StealthCoder returns a working solution in under 2 seconds. Reviewers clock LockedIn AI at 4 to 5 seconds of lag, which is painfully obvious in a live round.
- →StealthCoder is $15/mo on the annual plan and unlimited. LockedIn AI is around $55/mo on a credit or time model, for example 20 hours per 3 months.
- →LockedIn AI's Trustpilot sits near 3.7 with repeated reports of refund friction and poor support. StealthCoder cancels in one click.
- →StealthCoder is a focused native desktop app. LockedIn AI leans on a browser extension and live audio streaming.
Where LockedIn AI falls short
- ✕Around $55 a month, billed against a credit or time cap rather than unlimited use.
- ✕Reviewers report 4 to 5 second answer latency that creates obvious pauses.
- ✕Answers described as generic GPT output rather than in your own voice.
- ✕Trustpilot around 3.7 with repeated cancellation and refund complaints.
You can keep shopping tools, or you can run the one built by an engineer who passed his own loop with it. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds, invisible during the share. $15/mo, 7-day free trial, cancel in one click.
Get StealthCoderWhen LockedIn AI might be the better pick
If you want heavy live audio transcription for long conversational rounds and you do not mind the latency or the credit clock, LockedIn AI leans hard into that. For fast coding and system design answers at a lower flat price, StealthCoder fits better.
StealthCoder vs LockedIn AI FAQ
Is StealthCoder faster than LockedIn AI?+
Yes. StealthCoder surfaces a working solution in under 2 seconds. Reviewers report LockedIn AI taking 4 to 5 seconds, which creates noticeable pauses during a live interview.
Is LockedIn AI unlimited?+
No. LockedIn AI runs on a credit or time-based model, for example 20 hours per 3 months. StealthCoder's plans are unlimited.
Which is cheaper, StealthCoder or LockedIn AI?+
StealthCoder at $15/mo on the annual plan is well below LockedIn AI's roughly $55/mo.
Is StealthCoder a good LockedIn AI alternative?+
Yes. It is faster, cheaper, unlimited, and runs as a native desktop app instead of a browser extension, while still covering coding and system design.
Compare StealthCoder to other tools
See what they actually ask: leaked OAs, questions by company, and the most recycled problems.
You compared the tools.
Now go pass the interview.
StealthCoder runs invisibly during the live screen share, on coding rounds and system design. Works on HackerRank, CodeSignal, CoderPad, and Karat. $15/mo, 7-day free trial.