How to reduce APK file size?

Question

Unity

Good day, friends. I'm making a game on Android and when building, the installation file weighs 76 mb.
This is a lot. How can I reduce the size of the apk file when developing on Android?
The Assets folder (where all the images, sounds, animations and other resources) weighs 20 MB. And where does 56 MB come from?
Editor.log writes this:

5.9 mb 0.9% Assets/Sprites/Background.jpg
5.4 mb 0.8% Assets/Sprites/TableLevel.png
2.2 mb 0.3% Assets/Sprites/Island.png

But where he takes these image sizes from is not clear.
In fact, they weigh 15, 20 kilobytes.
Thank you very much in advance!

Answer 1

In fact, they weigh as much as written in the log, jpg and png do not get into the build, all files are recoded into the platform format according to the texture import settings. If you want to get smaller images, you can put more compression or use the crunch format. Actually, all this is written in the manual:
Reducing the file size of your build
Optimizing the size of the built iOS Player
Code stripping in Unity
IL2CPP Build Size Optimizations

Answer 2

Read articles on this topic on Habré.