Vincent
Günther;
I just know the IOS version but you can check the author's website for more details: imodelkit.com/id6_WebSite_en/Home.html

There is a review on Youtube made by International Scale Modeller: Youtube Video

There is also an entry on Scalemates: iModelKit v1.3 (id6 Sàrl IMK 1.3, No)

I use it to:
- find out the right mix of paint.
- keep a track of my own mix for futher paint job

Günther Debiscop
no android version... hopefully he will create one