Mnemoid: One Minute Challenge

Five workouts. One minute each. No account, no ads, nothing to sign up for.

A minute is enough.

Mnemoid: One Minute Challenge is five short workouts, each one built around a different kind of thinking. Play one on the way to work, or play all five and still be done before the kettle boils.

MEMORY GRID A pattern flashes on the board. Hold it, then tap it back. Position, not order.

REACTION The pad turns green after an unpredictable pause. Tap it as fast as you can — and not a moment before, because jumping the gun costs you.

SEQUENCE Pads light one at a time. Repeat them in the same order. Miss one and the round ends where it stands, so the steps you got right still count.

ATTENTION The board fills with symbols. Find every match before the clock runs out. Nothing is hidden here — what is scarce is time.

LOGIC Four terms of a sequence and a missing fifth. Work out the rule, pick what follows.

IT GETS HARDER AS YOU DO Every mode carries its own level. Play well and it tightens the clock, widens the board and asks for more. Play badly and it eases off. You never sit at a difficulty you did not earn.

A NEW CHALLENGE EVERY DAY The daily challenge is the same for everybody, seeded from the date — same board, same order, same clock. Come back tomorrow for a different one, and keep your streak going.

SEE WHETHER YOU ARE IMPROVING Every mode keeps its own record and a history of recent scores, so the question "am I actually getting better" has an answer rather than a feeling.

NO ACCOUNT. NO ADS. NO INTERNET. Nothing is collected, nothing is uploaded, nothing is sold. There is no sign-up, no subscription and no analytics. The app works in aeroplane mode because it never needed a connection in the first place. Your records live on your device and nowhere else.