Date: 2017aug7 Language: Java Keyword: demo, full, paid, free, flavor, flavor, flavour, flavours Q. How can I have multiple variants of an android app? A. Use "build variants". https://developer.android.com/studio/build/build-variants.html If you only want to change a bit of code you can do this:

if (BuildConfig.FLAVOR.equals("demo")) { // demo code }

Credit: reddit user AllanHasegawa