+ No Ads!
+ No permissions!
+ Dark mode for strain free viewing
+ Permits one-step undo!
+ Endless mode!
+ Minimalist design!

Based on tpcstld's 2048; code available at: http://github.com/tpcstld/2048

Pro trick
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1. Concentrate on a corner
2. Swipe only in two directions
3. Swipe in a third direction only when step 2 is not possible
4. Never swipe in the fourth direction