Cognilo: Brain Training Games

Cognilo is a daily puzzle game for adults on iPhone and iPad. Each day it serves the Daily 5: five short games picked for your level across memory, focus, logic, numbers, spatial and language, taking about six minutes. It is untimed by default, needs no account and works offline. You see a clear result for each round and a practical tip for the next attempt. It is a puzzle game for fun and personal bests; it makes no medical or cognitive-improvement claims.

Free on the App Store. Built with Rork, an AI app builder, from the developer's prompts and many rounds of iteration.