Version Numbers and Build Codes and Joy APK Game: A Guide for Low-Storage Android Phones
https://mobileapkcircle.wordcanopy.com/posts/what-experienced-android-users-look-for-when-assessing-app-cache-management-on-modjoy
On a phone with little free space, every download and update needs a little more planning. Version numbers help people recognize releases, while build codes give Android a numeric way to order app builds