I have seen google apk expansion files guide (about 2GB main and 2GB patch). However many apps are not using this stuff. There is no downloading started after application 1st run, and at the same moment this applications are larger than 50mb. For example this one (greater than 50mb): https://play.google.com/store/apps/details?id=com.minoraxis.roc.google
Here is an even 255mb size app that is also downloading nothing after install: https://play.google.com/store/apps/details?id=com.kabam.ff6android.
Do I need to have some special google account or build a some kind of multiple apk to get possible to put extra 100megabytes of data into my application? Some users are quite dissapointed when after application is finally loaded and installed it starts to download something again...