I’ve just built my almost empty scene (it has just a plane and a cube) for Android (APK) and the final size is 21mb. It’s too much for GooglePlay users What the minimum size of APK that you can achieve with Unity?
it is almost 10 mb. you need to go build setting->player setting->other setting->device filter
and select armv7. Be careful, afew devices don’t use armv7 cpu