OpsinoMeasure without uploading
Opsino temporarily processes recent camera frames for color identification. It does not upload them for analysis or save photo captures to your photo library.
Use it without the internet
Measurement, neutral calibration and guidance work on your iPhone without an internet connection.
You control camera access
iOS asks your permission before Opsino first uses the camera. You can change access in iPhone Settings. Without camera permission, Opsino cannot measure colors.