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NeuroSprint

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Three two-minute brain tests a day: reaction, number flash and sequence, one Brain Score.

Play NeuroSprint

on playneurosprint.vercel.app

NeuroSprint #105 on 27 October 2026: Number Flash level 1 with the day's three digits 819 typed back above the on-screen keypad

NeuroSprint is a daily brain benchmark that takes about two minutes. Everyone gets the same seeded set of three tests each day, reaction time, number memory and sequence memory, and the result is a Brain Score, a playful Brain Age, a grade per skill and your percentile among that day's players.

About NeuroSprint

NeuroSprint is a short daily test of three quick mental skills. In Reaction you tap the instant the screen turns green, over five rounds. In Number Flash a string of digits appears and vanishes, and you type it back. In Sequence a set of pads lights up in order and you repeat it.

The whole sprint takes about two minutes. Because the day's challenge is seeded and the same for everyone in the world, scores can be compared fairly: you get a Brain Score, a Brain Age, a letter grade for each of the three skills and your percentile among the people who played that day. Results can be shared as an emoji grid, or sent as a challenge link so a friend faces exactly the same test.

There is no account, no install and no tracking; your history stays in your browser. A new sprint arrives at midnight UTC.

How to play NeuroSprint

  1. Open NeuroSprint and press Start today's sprint.
  2. Reaction: tap as soon as the screen turns green, five times.
  3. Number Flash: memorise the digits before they vanish and type them back.
  4. Sequence: watch the pads light up and repeat the order.
  5. Read your Brain Score, grades and percentile, then share or send a challenge link.

Screenshots

NeuroSprint #105 start screen at phone size, with the three test cards above the Start today's sprint button and the countdown

Tips

  • Play somewhere quiet and on a responsive screen: reaction times suffer from distractions and lag.
  • Chunk the flashed digits into groups of two or three to hold more of them.
  • Say a sequence quietly to yourself as it plays to repeat it more reliably.
  • Compare your percentile over days rather than single scores: some days run harder.

Questions

When does NeuroSprint reset?

A new sprint arrives at midnight UTC.

Is it the same test for everyone?

Yes. The day's challenge is seeded and the same worldwide, so scores are comparable.

Do I need an account?

No. There is no account, install or tracking; your history stays in your browser.

How long does it take?

About two minutes for all three tests.

Ratings and reviews

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