I built an AI car mechanic that diagnoses from photo, video and sound — feedback welcome

Hi everyone! I'm the maker of AI Master. You describe a car problem in words or attach a photo, video or sound, and the app builds a report: likely causes, an estimated repair cost and a parts list. It also supports Bluetooth OBD2 scanners and includes AI tuning (color, wheels, headlights, body kit). iPhone and Android, 8 languages.

We launch here today. To try it for free: Settings → Promo code → AIMASTER1 (one report per account).

I'd really like to know: what would you want a tool like this to do that it doesn't yet? And if you use an OBD2 scanner, which adapters and cars work for you?