About BRINXO

BRINXO is a small, fast brain game. Open it, tap play, and within seconds you’re solving quick questions against the clock. It’s built for short breaks — on the bus, between classes, or while the kettle boils.

What we care about

• Fair. No pay-to-win, no energy timers, and never an ad in the middle of a question.
• Fast. A tiny download that starts instantly, even on older phones and school computers.
• Private. No accounts, no personal data. Your progress stays on your device.
• Accessible. Full keyboard control, screen-reader labels, reduced-motion support, and feedback that never relies on colour alone.

How scoring works

Every point is earned the same, transparent way:

points = (50 + speed bonus + difficulty bonus) × combo
Speed bonus: up to 50 for answering quickly. Difficulty bonus: 10 for each level above the first. Combo: ×2 after three correct answers in a row, ×3 after six, up to ×5.

In Blitz, a wrong answer costs three seconds — so guessing never pays. In Endless and Memory Grid you have three lives.

How difficulty adapts

Questions range from Easy (single-digit sums) through Medium and Hard to Expert (two-step expressions, primes, fractions and sequences). In Blitz, the game watches your accuracy and speed and nudges the level up or down a little after every answer — never in big, unfair jumps.

Where to play

Play on this website, on Android, and on selected game portals. Progress is stored separately on each platform.