How to reduce the android app build size!

How to reduce the android app build size!


right now without any data the empty unity project getting 18mb output file .How to reduce that size around 5mb?

 

bump

 

you can build an apk per processor architecture (e.g: ARM and x86 APKs).

This removes around ~ 8 - 10 mb from the build.

 

any other answers?

 

If you have 'using System;' in some script, it adds 1mb(?) (not tested, but have heard so..)

 

right now i can able to reduce only 10 mb as liortal said .by changing to arm7. but i dont think using system will reduce size.empy scene without script is 19mb right now

 

if u change arm 7 only target format for processor then u get 19-9 mb so =10 total .for a empty project

 

i dont know how to reduce more than that .if any other know let me know.empty scene should take that much size.want to reduce that

 

The engine + mono takes a few good mb's.. u cannot drop below that. even for an empty scene (no content).
You can try to use il2cpp on Android, i haven't used it so i am not sure what is the current size for those builds.

In il2cpp i believe that they apply stripping for engine code, so that may reduce the unused parts and reduce the overall size.

 

Unity build size begins from ~15 mb and Unreal Engine 4 begins from ~50mb.
This is for engine internal dll and files. For example splash screen image.
After 15 mb, you can manage your build size with these tips:
https://forum.unity3d.com/threads/unity-5-build-size-tips.438635/

 

ok thanks for all !

 

Bumped across this while try to reduce the size of a very simple game, currently consuming 24 MB.

Thanks.. that explains a lot.. But 15MB for mobile platform is a lot I believe, where size matters a lot. Still way better than UE4 I guess.

 

When i run my app size of apk will 21 MB. even i enabled proguard. i use android studio to run project. in project files src folder has 8.62 MB size and lib folder size is 400 KB size. so how i reduce size of .apk file. Actually .apk file is 8 mb before some days with same images but after paypal integration my app size will increases to 21 mb. size of build folder is 127 MB.

 

I am using Unity 22018.1.7, however, but I remember reading in the release notes, that, iirc, the latest version allow us to chose which default packages to include in the build. I am not sure if they mean what I think they mean, but I believe we can remove the unneeded Unity modules now. Has anyone tested this?

 

That's really great. What was the final size?
Also, I noticed that you are using 2019.1 Alpha, not the latest f release. But, it is there in 2018.2+, right?

 

Great.

Too sad I tried 2018.2 yesterday, but my project doesn't seem compatible.
Mostly due to the use of TextMeshPro. T_T

 

For anyone stumble upon this post later, disable unity build-in package did not help reduce file size. It gonna be stripped if you not using it anyway so there is no point disable it.

And the smallest size I can get with 2018.2 unity default scene with Camera is 6.25MB

You have to use stripping engine code with:
- Scripting runtime version: .Net 3.5
- Script Backend: ILL2CPP
- Api compatibility level: .Net 2.0 Subset
For Texture: Use Unity Atlas or sprite packer to reduce texture size
For Scene: use asset bundle does help compress Scene Size in build
For Music: lower it from wav to 192kbs MP3

 

Thanks @NoDumbQuestion
Worth noting

BTW, doesn't Unity automatically use Atlas for all textures?

What do you mean by this?

 

@aklgupta
No, Unity did not magically package all of your sprite, texture into any 2^n square texture to save space.
That's why we have TexturePacker

You can compress your .scene with assetbundle to save more space in scene. It like trading loading speed for lighter space.

 

Oh, thanks. I thought it those so automatically in the newer versions. I remember reading something like that somewhere, can't recall where.

 

Also dont forgot to Use "Default" Compression method , is u want to reduce the size ..

 

I am still wondering how to reduce included DLLs from build size. I have enable stripping level too! . I am also looking for explanation of Total User Assets , how to reduce that one. I am using admob and unity ads plugin no other third-party assets. Another question is, does unused assets have impact on build size if they are present in project???