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Millions of chess tactics pulled from real games and served at exactly your rating, entirely free and with no account required.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
Lichess Puzzles sits in Brain Trainers under Play, and we have it filed as a minute — one quick round, then you can leave. It reads as brainy and competitive.
Memory, reaction, attention and pattern-matching drills that happen to be fun. Short sessions, visible progress, and a score you will want to beat.
Click targets as they pop up and get scored in targets per second. Shooter players use it to warm up before a session.
Dual n-back, the working-memory drill psychologists keep arguing about, implemented properly and charted over time.
A scrappy free collection of brain teasers and n-back drills that has been quietly online since long before the app stores existed.
A plain, ad-free bank of cognitive tests — n-back, digit span, Stroop, mental rotation — that keeps a history of your scores.
The 1978 electronic memory toy rebuilt faithfully in a browser tab, still beating most grown adults somewhere around level twelve.
Reaction time, sequence memory, the chimp test and verbal memory, each scored against millions of other people's attempts.
The best-known brain-training subscription, with a free daily set of games and rather a lot of graphs about your own decline.
Hundreds of matching-pair memory games plus Simon-style sequences, scaled from toddler difficulty to genuinely unpleasant.