All 50 games
Well-known games and tests
Memory · 6 games

N-Back
Pictures come one by one. Tap Match when a picture is the same as the one a set number of steps back.

Picture Memory
Remember where the pictures are. When they hide, tap the places they were.

What Vanished
Look at the objects. One disappears. Which one was it?

Pairs
Turn two cards at a time. Find every matching pair in as few turns as you can.

Digit Span
Digits appear one at a time. Type them back in the same order and press OK.

Flash Order
Squares light up one by one. Tap them in the same order.
Attention · 7 games

Golden Ball
Watch the golden ball (two or three on higher levels). When the glow goes out and the balls shuffle, keep your eyes on the gold, then tap it.

Spot the Change
Remember the picture. It changes once. Tap what changed, fast.

Cup Shuffle
Watch the cup with the ball as the cups swap places, then tap it.

Odd One Out
One shape is not like the others. Find it before time runs out.

Number Hunt
Tap the numbers in order, starting from 1.

Two Targets
Each side has its own golden ball. Track both at once, then tap both.

Eye Drills
Follow the dot with your eyes only, keep your head still. Four short drills, each with its own signal to catch.
Reading · 13 games

Speed Read
Words flash in one spot, faster and faster. Keep your eyes on the highlighted letter.

Word Repair
Some words are broken: mixed up, mirrored or written with numbers. Read the text anyway.

Mirror Read
Some letters are mirrored, and higher up also in the wrong case or fading. Read the text, then answer a question about what it says.

Read & Recall
Read the short text once. Then answer questions about it without looking back.

Find the Error
One word does not belong. Tap it.

Event Order
Read the story. Then put the events in the order they happened.

Spin Read
Letters of a phrase spin while you read it. Then pick that exact phrase from sentences that differ in one word.

Number Letters
Some letters in the text are written as digits. Read the text before it hides, then answer a question about it.

Jumble Read
The inner letters of some words are shuffled; first and last letters stay. Read the text in time, then pick what it means.

Wrong Letters
Some words in the line have one wrong letter. Tap every one of them, then press Done.

Codeword
Read a long text with letters written as digits, mixed up or mirrored. Somewhere in the second half it gives a code word. Type that word once the text hides.

Missing Word
Some words are jumbled and one is missing. Before the time runs out, pick the word that fits the gap by grammar and meaning.

Gap Letters
Words are missing letters. Read the phrase and pick the option it shows; on higher levels the phrase hides and you answer a question about it.
Reaction · 6 games

Quick Tap
Wait for solid green, then tap as fast as you can.

Choice Tap
One lamp lights up green. Tap it as fast as you can. Grey flashes don't count.

Stop the Bar
The marker runs along the bar. Tap to stop it inside the gold zone.

Tap Only Green
Tap every green circle. Do not tap the red ones.

Quick Sum
Is the answer right or wrong? Answer fast.

Compare Numbers
Tap the bigger number. Finish the set fast: every mistake adds a second.
Mental flexibility · 5 games

Color Word
Tap the colour of the ink, not the word you read.

Number Stroop
Count how many digits you see, not which digit it is.

Place Word
A direction word sits somewhere on the screen. The cue says whether to answer where it is or what it says.

Task Switch
A card shows a number and a letter. On top, say if the number is even; below, say if the letter is a vowel.

Rule Switch
Tap the key card that matches the card above. A hidden rule decides how, and it changes.
Logic · 13 games

Lights Off
Tapping a lamp flips it and its neighbours. Turn every lamp off.

Tube Sort
Pour until each colour fills a tube of its own.

Gear Spin
The arrow shows how one gear turns. Find which way the ? gear turns. Touching teeth and crossed belts flip the way; open belts and rods keep it.

Untangle
Drag the dots until no thread crosses or touches another and none runs under a dot.

Ink Paths
Join each pair of matching dots with a line. Lines may not cross or pass through other dots. From the expert levels on, every square must be filled too.

Pair Lines
Draw a line from each picture to its twin. Lines may not cross each other, ink blots or other pictures.

Paper Fold
A sheet is folded and punched. Pick how it looks unfolded.

Cube Net
Fold the flat net in your head and pick the cube it makes. Marks and the way they point must match. Some rounds show a cube: pick its net.

Turn Match
Say whether figure B is figure A turned, or A mirrored. Size never counts.

Matrix Gap
The tiles change by rules along the rows or down the columns. Pick the tile that fills the gap.

Next in Line
Find the rule in the row and type the number that comes next.

Shape Next
Figures gain or lose dots or sides, turn, cycle through fills or switch between two looks. Pick the one that comes next.

Odd by Rule
Four figures share a rule: mirror symmetry, even or odd sides or dots, as many dots as sides, or filled only when pointing up. Tap the one that breaks it.
Free on iPhone and iPad. Works offline, with no account.
Download on theApp StoreComing soon