ThinkFast

Think Fast is a brain training app focused on one thing: logical thinking. No trivia, no school subjects, no guessing games. Every task is built around pattern recognition, rule application, and fast decision-making. 5 task types: Sequences — find the rule behind a number series Logic rules — apply letter-to-number mappings to solve expressions Transformations — figure out how a string or number changes step by step Odd one out — spot the number that doesn't fit the group Comparisons — determine which mathematical expression is greater How it works: Each round is 5 to 10 tasks with a countdown timer You earn XP for correct answers; speed and streaks give bonus points Wrong answers reduce your score Difficulty increases gradually across 100 levels, from obvious patterns to hidden rules and traps The app tracks your level, total XP, accuracy, best streak, and number of completed games. All progress is stored locally on your device. No account required, no data sent to servers, no ads. Available in English, Russian, and Ukrainian.