ColorChecker for Android
This app has no purpose
Useless
Unfortunately this so missed the purpose of the cards, all this app can do id show the accuracy of the screen, of the colour values had been provided. To be useful for a photographer it needs to reflect the light at the scene being photographed, then you can measure the colour, create a camera profile. No use at all :-(
Calibration very well
by Y####:
Is compatible with standard color chart in the market and with most software. But...Remember is not a real color checker as you record emitting light of your phone and not ambient reflective light. Can be useful for emergency to match different cameras or lenses. But remember is NOT accurate for serious work. If you give your rush to a colorist filming with this chart he gonna laughing for few days.