PrepZeroAI
Stealth Interview Copilot
Fair & Transparent BYOK Pricing

Pass interviews without predatory subscriptions.

Traditional AI interview apps charge $30-$100/month by marking up standard AI APIs. PrepZero AI is architected differently: Bring Your Own Key (BYOK) and pay $0 forever.

Most Popular
Community BYOK Edition
$0/ forever

Full desktop app access with native audio loopback, stealth HUD, and Google Gemini 2.5 Flash.

Full Stealth HUD on Zoom, Google Meet & Teams
Internal Audio Loopback (Interviewer speech)
One-Click Screen OCR for LeetCode & HackerRank
Direct Google Gemini 2.5 Flash connectivity
Client-side privacy: Zero cloud logs retained
No credit card required to install or use
Download Desktop App

How Google gives you free AI power:

Google AI Studio provides all registered developers with a generous free tier for Gemini 2.5 Flash. You get up to 15 queries every minute at no charge. A normal interview generates roughly 1 to 2 queries per minute. By connecting your own key, you skip the middleman markups completely.

Step-by-step tutorial: Get a free Gemini key in 2 minutes

Common Questions About Pricing

Will I ever be billed unexpectedly?

Never. PrepZero AI does not collect your credit card upon signup. You use your own free Google AI key, so we have no billing pipeline to charge you monthly.

Is the free Gemini quota sufficient?

Yes! 15 requests per minute is more than 30x the rate needed during an hour-long coding interview or system design session.