What I Learned Reading Unity's BuildReport After Building 16 APKs

Build Analyzer series, article 2.

In the previous article, I built 16 Android APKs while changing one variable at a time. After that, I had the APK numbers. What I did not have yet was a good explanation for where those bytes came from.

When I finished the build-size experiment, I almost published the wrong number.

Unity handed me three different "build sizes," and for a moment I was not sure which one represented the file users actually download.

That confusion is why I wrote a small BuildReport parser. I already had the final APK deltas, but I wanted evidence from inside Unity's build output too.