Most AI skin apps produce a confidence score the moment you open the camera, regardless of lighting, angle, or image quality. Rosee works differently: it reads actual surface data — reflectance patterns that correspond to hydration, oiliness, redness, texture irregularity, and glow — and returns a score only when that data is clear enough to be meaningful. When it isn't, Rosee says 'not enough data.' That's not a limitation; it's the feature.
Every scan is analyzed entirely on your device. Your photos never leave your phone — not to Rosee's servers, not to any AI cloud service. The analysis happens locally using computer vision running on your device's processor. Your face is your data. You keep it.