Shell Game
AttentionVisual memorySpatial skillsFree
Follow the cup with the ball. Trains tracking moving objects and keeping your attention steady.
How to play: Remember the cup hiding the ball, then tap Shuffle. Follow the identical cups as they move. Once they stop, tap the cup hiding the ball. The correct answer appears after your choice. Choose the number of attempts in settings. Settings: 3 to 6 cups and shuffle speed from 0.5× to 2.5×. Your score is the percentage of correct answers.
What's missing?
Visual memoryAttentionFree
Memorise a set of items and spot what disappeared. A classic visual memory exercise.
How to play: Memorize all items on the screen. After they disappear, one item will be missing. Point out which one!
Emoji Hunt
Visual memoryWorking memory
Memorise a sequence of emojis and find them all in a table. The load grows every round.
How to play: Emojis appear one by one. Memorize them, then select all shown emojis from the table. If you tap the wrong one - you lose. Each round has more emojis and a larger table.
Sense of Time
TimingWorking memory
Memorise a 3–12 second duration and reproduce it without a clock — training your internal timer.
How to play: Memorize the target duration (3–12s), then press “Stop” as close to it as possible.
Remember the emojis
Working memoryVisual memory
Memorise the order of emojis and recall what was in a given position. Starts with five and grows.
How to play: Emojis are shown in order. Memorize them, then answer which emoji was at the specified position. Each round has more emojis. Starts with 5 emojis.
Number Replacement
Working memoryCognitive flexibility
Learn number-swap rules in 4 seconds and apply them from memory. Pure working memory.
How to play: Number replacement rules appear first. Memorize them in 4 seconds. Then guess the correspondences.
Emoji Memory
Working memoryAttention
Count in your head how many times each emoji appeared. You watch and keep four counters at once.
How to play: Memorize how many times each of the 4 emojis appears. A total of 10 emojis will appear.
Words
Verbal memoryWorking memory
Memorise a list of words and type them from memory. Trains verbal memory — useful for study and to-do lists.
How to play: Memorize words in order of appearance. After memorizing, enter them.
Spatial skillsWorking memoryVisual memory
The Corsi block test: repeat the sequence of highlighted cells. Measures visuospatial memory span.
How to play: Memorize the flashing sequence in a 3×3 grid and reproduce it. Length increases by 1.
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Face Memory
Verbal memoryVisual memory
Link names to “faces” — a skill that pays off in meetings and when you meet new people.
How to play: Remember which name corresponds to which emoji, then match them.
Instant Table
Visual memorySpatial skills
A grid with green cells flashes for a moment and you rebuild the pattern. Snapshot visual memory.
How to play: A table with green cells will appear for a moment, then disappear. Your task is to tap exactly the cells that were green. Each round gets harder.
Working memoryVisual memorySpatial skillsPlayable online
The chimp test: remember where the numbers are and tap them in order once they are hidden.
How to play: Tap numbers in ascending order. Sometimes they disappear — tap from memory.
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Visual memorySpatial skills
Find matching pairs by flipping two cards at a time. The childhood classic for visual and spatial memory.
How to play: Cards with symbols on screen. Flip two at a time to find pairs. The faster, the better.
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Working memoryAttention
An n-back task: tap when the letter matches the one from three steps back. One of the best-known working memory challenges.
How to play: Letters appear one by one. Press the button if the current letter matches the one from 3 steps ago. Trains working memory!
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Whose Ball?
AttentionVisual memory
Track several identical balls and recall the number of the one that dropped into the hole. Multiple-object tracking.
How to play: Remember the numbers on identical balls and tap Launch the balls. The numbers disappear as the balls move and bounce off the rails. One ball lands in the hole. Choose its original number. The correct number appears after you answer; continue to the next round when ready. Settings: 3–8 balls, speed from 0.5× to 3×, and 3–20 rounds.
Working memoryAttention
Backward digit span: see 8-3-1-7, type 7-1-3-8. Adaptive length keeps you right at your limit.
How to play: Digits are shown one by one: 8, 3, 1, 7. Enter them in reverse order: 7, 1, 3, 8. The answer is checked as soon as the whole chain is typed. Get it right and the next chain is longer; get it wrong and it gets shorter, but never shorter than the starting length. Settings: number of attempts, starting length and time per symbol.
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