[ge0rg]

I consider the memory footprint even more important, though it is hard to find strong relations between APK size and memory use -- except for the "looks like the dev did not care at all" rule.

Regarding APK size, you can do miracles by using ProGuard (even with obfuscation disabled), though it will obviously fail for native code, like in the Qt case.

[pjmlp]

I just do hobby development on Android.

Day job is actually JVM/.NET/C++ enterprise applications.

Nonetheless, even my device is not swimming on free space, so I do have some care with it. And given my age, I am used to the time when every byte counted.

On my hobby development I tend to do a mix of Java/C++, depending how portable I want to do it.