apk size of empty scene is 20Mb, after installation on phone its 62Mb

tried to reinstall unity and reset settings, when I build a game from a completely empty project, empty scene, i get an apk of 20 Mb, after installation on phone the app takes 62Mb.
I checked the editor log but couldn't figure out anything meaningful out of it.

I Will be so thankful for even a hint as to why this is happening..

 

that is because generally, APKs are compressed a bit. That's why Pokemon GO comes out at 100MB+ but the download is only 40.

Plus, if you're caching a little bit of stuff, that adds to it as well.

 

Thank you Fuzzy, appreciate it!
Its just that wile searching for a fix to this problem (which might not be a problem like you said) i saw people that have apk's 10 Mb big and installed they are 20 Mb.

This happens for an EMPTY project, no game object nor scripts.. ):
Am i too big or is this size normal ?

 

You get about half that size if you only compile for ARM or x86, by default it does both into a single binary / apk

 

Still getting 52 Mb for an empty project, no objects and no scripts when building in ARM only.
is this an exotic problem? not a common one?

 

so it just dropped 10 mb? thats about all you will save when going to ARM only. although 52mb is to big, I have a small puzzle game, only takes 32mb on the phone after installed.

 

yeah i think i f'ed something while copying projects or messing with something. ill try a different machine.. thanks for the 32Mb reference

 

i am really sad i make an empty 2D project with unity , just empty scene and the apk size is 20 MB
i need a fix please

 

You Can optimise to 11 Mb ,By setting the device filter Go to PlayerSettings Change Device filter to ARMV7

This can fix for u

 

https://unity3d.com/Manual/class-PlayerSettingsAndroid.html

API Compatibility Level: Mono subset
Device Filter: Arm

 

Completely forgot the Mono feature set affects APK size as well. Noted myself for future usage.

 

I can say: with U4.7 i get i file size about= 7,27mb APK !!! pretty great !!!
Again with U5.6 and with REALLY optimal player settings, i get = 10,0mb APK . And i guess with U2017 & U2018 it gets more worst ! . Don´t know why Unity is making it more bad.

Conclusion: old Unity 4.7 is much better in filesize and also in performance !

 

I got 8.30mb on U4.7 ... How you got 7.27mb

On U5.5 I got 9.5mb

 

For the test, an empty scene. Than turning everything off, that is not needed. Like, Gi-baking, etc. I use Net Sub-set which results in a smaller size, in comparison to the normal net.