Six science-grounded cognitive games — and a growing set of ways to compete, stay consistent, and watch yourself improve.
Fixed speed, one mistake and you are out. Test your stamina and consistency under pressure. A classic color-word interference test with a fixed interval — how long can you last?
Speed increases as you improve. Wrong answers cost points; right answers earn speed bonuses. The interval tightens every ten correct answers — chase the high score.
Four items appear. Three follow the same pattern, one is different. Tap the odd one before time runs out — one mistake and you're out. Fast answers earn bonus points.
A 40-second Go/No-Go test. Tap on green, hold back on red. Discover your mental state: Fully Awake, Groggy, Sleep Deprived, or Impaired.
A fast challenge that tests your ability to understand the rule, distinguish correct options, and make precise decisions under time pressure.
Analyze the evidence, eliminate possibilities, and identify the correct suspect before time runs out. Every round tests your reasoning and attention.
Create a room, share the code, and compete head-to-head in simultaneous live rounds — against friends, colleagues, or anyone you dare to challenge.
One challenge per day. Complete it to extend your streak and unlock milestone rewards — a small daily habit with compounding cognitive payoff.
Every game reports speed in milliseconds and accuracy per session. The Cognitive Skills Report follows your mental fitness across nine core cognitive domains, so improvement is something you can see — not something you have to believe.
IDM Stroop is free to play every day. A subscription unlocks additional daily play and advanced features for those who want to go further.
Six games, two languages, one platform. No installation needed.