Do you play any games on your smartphone? I'm looking for single player ones to kill some time when waiting for the bus. Ideally they should work without an internet connection, so I can disable network access for that app and play without ads.
I'm currently playing Words of Wonder, but it gets repetitive after a while.
If you enjoy deckbuilders, Dawncaster is amazingly well polished and designed for mobile controls instead of terrible ported-from-pc controls.
Paid app, but no ads, fully offline, and still receiving gameplay updates