Digit Span

Watch a string of digits flash by one at a time, then key them back. Forward tests raw span; backward makes you juggle them in reverse — the classic working-memory test.

Trains: Number memory · Category: Memory

How to play: Digit Span is a free, browser-based brain-training game in the Brain Gym suite. Play it instantly — no sign-up, works offline, and your best scores are saved on your device.

Play Digit Span · All Brain Gym games