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.
Here are some OG ones: Angry Birds, Subway Surfers, Geometry Dash, Dumb Ways to Die, Crossy Road, Flappy Bird and Pokemon GO.