The latest was "I Love Hue". It let me play 10 levels (nice) and then put ads in. If they had just asked for $1 before showing the first ad I might have paid but as soon as I saw the ads I just uninstalled.
Note: IMO "I Love Hue" is a $1 game. I'm happy to pay $$ for bigger games and often do though on Switch/Steam, less on mobile.