CountUp is intended to be a game suitable for anyone, and it passably succeeds. Square cards are stacked & scattered with numbers from 1-30, or higher. You’re then timed while touching the numbers in succession and removing the cards. It’s a mind engaging activity that suppresses the world around you , at least a few times.

My 2ish year old toddler got the idea but it took him a while to get use to the legend number placed in the center of the display. At 2.75 years, he’s got it. The visuals aren’t quite engaging enough to get him to stick through to 30, but he’s had fun with it upwards of 20.

So, it’s free, and while maybe not the most compelling app it’s a fun way to challenge a friend for a few minutes. If you’ve got a young one learning to count, then it’s likely a real winner!