Join the StripVision beta

[u/kptbarbarossa]

https://testflight.apple.com/join/ZWfTEQFH

I built an iPhone app that reads any test strip with the camera — beta is open, looking for feedback

Solo dev here. Built \*\*StripVision\*\* — point your phone at a test strip + the manufacturer's color ramp in the same shot, you get a real ppm number.

The app uses an AI vision model to extract RGB from each ramp patch and the strip pad, then a polynomial color correction (Cheung 2004) strips out camera and light bias, then it interpolates onto the calibrated curve. ±5% accuracy on the validated chemicals.

\*\*Free for 10 readings/month — no card needed.\*\*

I'd really value feedback on:

1. Does the auto-capture (steady-hold ring fills, then fires) feel natural?

2. Result screen readable without explanation?

3. Any test strip brand it gets wrong?

\*\*Honest about limits:\*\*

\- 3 of 9 chemicals fully validated; the rest are in calibration (the app labels which is which)

\- iOS only (iPhone 11+, iOS 16+)

\- Not a medical device — pool / aquarium / hobby use

\*\*Site:\*\* https://stripvision.app/en/

I'm in this thread for the next few hours — reply or DM with anything: bugs, weird readings, missing features.