Spatial Memory

Directions

Four arrow buttons — up, down, left, right. The game flashes a sequence of arrows, and your job is to tap them back in the exact same order. Each round you survive, one more arrow is added to the chain.

Round 1: One arrow appears. Tap it back.

Round 2: The first arrow replays, plus a new one. Tap both in order.

Round N: The sequence keeps growing. One wrong tap ends the game.

Level Sequence Score Rating
Beginner 3–4 arrows 3–4 🟢
Good 5–6 arrows 5–6 🔵
Pro 7–8 arrows 7–8 🟣
Legend 9+ arrows 9+

Inhibitory Control

Color-Word

A color name flashes on screen — but it's written in a different ink color. Your brain wants to read the word; your job is to ignore it and tap the tile that matches the ink instead. Simple to understand. Surprisingly hard to execute.

A word appears — for example, "RED" — written in green ink.

Ignore the word. Look at the ink color. In this case: green.

Tap GREEN on the grid of four color tiles — before time runs out.

Based on the Stroop Color and Word Test, first published by John Ridley Stroop in 1935. It measures cognitive interference — your brain's ability to override a dominant automatic response.

Working Memory

Numbers

A sequence of digits flashes on the watch screen, one at a time. Once they've all appeared, you reproduce the sequence on a full numpad. Every correct answer adds one more digit to the next round.

Round 1: A single digit appears. Enter it on the keypad.

Round 2: Two digits flash in sequence. Enter them in order.

Round N: The chain grows by one each time. One mistake ends the game.

Level Digits Score Rating
Beginner 3–4 digits 3–4 🟢
Average 5–7 digits 5–7 🔵
Pro 8–9 digits 8–9 🟣
Legend 10+ digits 10+

Based on the digit span task, a staple of cognitive psychology since 1887. The average adult can hold 7 ± 2 digits in working memory — can you beat it?

App Store

Ready to Test Yourself?

Mem Blitz is coming soon to the Apple Watch App Store

Coming Soon on the App Store