(= Android application package, "Androidi rakenduspakett")

olemus
failivorming mobiilirakenduste ja vahetarkvara levitamiseks
= the file format used by the Android operating system

ülevaateid
https://en.wikipedia.org/wiki/Apk_(file_format)
https://www.appmysite.com/blog/apk-aab-comparison/
https://techvidvan.com/tutorials/android-application-package/
http://www.ryantzj.com/android-applicationpackage-apk-structure-part-1.html