
Prism Riot
The colour card game, rioted — 65 free modes in your browser and on Android, with the iPhone app in App Store review.

118 short brain games for memory, focus, logic and speed — offline on iPhone and Android, and on the web.
Mind Skills Arcade is a collection of fast, focused brain games — memory grids, reaction tests, pattern matching, and more. Built for short, satisfying sessions that train real cognitive skills without ads interrupting every screen.
Anyone who wants short brain workouts during commutes, breaks, or downtime.
Not sure where to start? Our guide to free brain games for adults covers the six kinds worth playing and a ten-minute daily routine.
Most games take 1–3 minutes — perfect for a coffee break.
Yes.
Yes — download links above.
118, from Dual N-Back, Digit Span and the Stroop Test to Sudoku, Nonogram, Tower of Hanoi and brain teasers, grouped into memory, attention, logic and math.
Yes. The games are also free at mindskillsarcade.com, and the app's Settings link there.
No. There's no sign-up and nothing is locked behind a subscription. You can back up progress to a file and restore it on a new phone.

The colour card game, rioted — 65 free modes in your browser and on Android, with the iPhone app in App Store review.

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122 geography games: flag quiz, world map quiz, capitals and the 50 states. Free on iPhone, Android and the web.