I've just bought HiSense A5 Pro CC (no Google Play) so I have to side load apps. Maybe it is only a coincidence but so far I have mixed results with creating APK files from my other phone (Samsung XCover 3 or A52s using for example APK Extractor or CX File Manager). Some apps runs fine, some do not respond at all. I.e. after installing them, and then trying to launch the icon only flickers and that's it.
On the other hand all apps I found on APK Mirror website runs fine. I noticed also that the apps I extracted by myself are smaller in size than the ones APK Mirror provides. So my guess is the packages created manually by me are missing some resources.
So how to create truly full APK in APK Mirror fashion?
I am asking since APK Mirror does not cover all useful apps after all. OSM Tracker for example runs fine after "manual" extraction, but I had no such lack with Open Weather -- I extracted it and side loaded with no effect, launching causes icon to blink and that's it.