Built this as a Chrome extension + Electron desktop. Audio captured in-memory, transcribes the question, surfaces a structured answer.
The wild part: the overlay is invisible to screen-share APIs. Zoom, Teams, OBS, Google meet all show a clean call.
Stack: Whisper for STT, OpenAI for generation,
https://reddit.com/link/1t6ptdz/video/i4p02plukszg1/player
ghostpilotai.com €29 session pass, free 10-min tier,
Shipped 2 weeks ago. Real-time AI interview copilot. Captures audio live, transcribes the question, surfaces STAR-format talking points the user can read aloud.
Stack:
- Chrome MV3 extension + Electron desktop companion
- Whisper for STT, Llama + OpenAI for generation
- Supabase auth, LemonSqueezy billing
- Audio in-memory, overlay rendered on a layer screen-share APIs don't see (Zoom, Teams, OBS show a clean call)
Architecture I'm proud of: the overlay invisibility took 3 weeks of fighting Electron window layers before finding the approach that worked. The AI was the easy bit.
Biggest mistake I shipped: a v1 that occasionally hallucinated the interviewer's name into answers. Nothing like "Hi Mark" when the interviewer's name is Sarah.
Pricing:
- Free: 10-min sessions with unlimited live answers, no card
- €29 Session Pass: 3 credits of 2 hours each, mix and match however
- €59/mo Pro
Plot twist: Reddit Ads killed my campaign for "facilitating illegal, fraudulent, or misleading behavior." Apparently €29 triggers their policy team. Meanwhile the $15M a16z-funded competitor in the same space scaled fine on TikTok and X after DMCAing a CISA security researcher who exposed 7 vulnerabilities in their product. Wrote up the full breakdown on X with sources if anyone wants the receipts.
Distribution post-launch has been brutal:
Reddit Ads: banned (above)
Reddit launch posts: 4 attempts, 1 mod-removed, 1 auto-filter-removed, 2 underperforming
Cold email to TikTok creators (for affiliate program): 50 sent, 0 replies
TikTok cold DMs: rate-limited within 24 hours
As a founder how did you get your first 100 paid in the b2c category?
Solo founder in B2C career-tech space. Paid ads keep getting category-banned (AI-adjacent tools in this niche reflexively get rejected). Cold creator outreach has been brutal too.