Cognitive

Attention

How fast can you spot the one that's different?

Among dots that are all the same size, one dot is a different size. Find it and tap it! No numbers or colors needed, so anyone can jump right in.

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No install, no sign-up — starts right away

At a glance

Players: 1 player
Ages: 4 and up
Play time: About 30 seconds
Levels · Modes: Normal · Easy (Easy has 6 rounds; the grid only grows to 4×4)

How to play

Choose Normal (8 rounds) or Easy (6 rounds).
A grid of same-sized dots appears.
Find the one dot that's a different size and tap it.
As the rounds go on, the grid grows from 3×3 all the way to 6×6.

Tips

Instead of checking dots one by one, take in the whole screen at once. The odd size tends to pop out.
You get only one tap per round, so tap when you're sure.
In Easy mode the odd dot is much bigger, so even young children can find it easily.

What it practices

Visual attentionPractice picking out the one that's different from the rest.

Visual searchLearn to scan a growing grid efficiently.

Processing speedYour search time is averaged, so you can see yourself getting faster.

Great for

Kids who don't know letters or numbers yet
Seniors looking for a low-pressure attention game
Anyone who loves spot-the-difference puzzles

Good to know

Your results show both accuracy and average response time. Notice how much you slow down in the later rounds, when there are more dots, to learn about your own search habits.

Attention · Play now →