Recently the game auto-downloads what I’m guessing is an update or additional content when it starts. It’s a green bar under the blue ‘loading’ bar. Today, this was 100MB!
This is way too much for some people to download using their phone’s data and you should give users an option or at least a warning to download the content over wifi.
Many users opt to only update the game in the Google Play Store over wifi and right now this is being circumvented. Pretty rude if you ask me. Stop it.