Iam using Google ARCore sdk to develop AR Android application with 30 3d models using unity.I was exported android project from unity and import into android studio and build application it was run perfectly.But the apk size is 400mb in that case i can't upload my application because playstore apk size restriction is 100mb.I was also set split into binary into unity and build it but the apk size is same 400mb.How can i publish my app to playstore?
I think you have to add an additional slim first scene which does not need many models and thus can stay below 100MB.
The rest of the scenes (i.e. your main ARCore scene) should then be transferred to the expansion file as explained here.