Tap Low comes from Technossion. It's a 'think-fast' game.  The object is to tap on the lowest number within 3 seconds.  Keep doing it.

Obviously this game doesn't have much repeated fun value.  But it's worth playing a few times to keep the brain sharp.
The program is a bit clunky; a few times I had to repeatedly tap the lowest number for it to register.
https://apps.apple.com/us/app/tap-low/id1467855964

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