Eight brain-training puzzles, two difficulty tiers, and a daily challenge built to keep your mind warmed up — and your streak alive.
Across two difficulty tiers
Build a habit, one puzzle a day
A new featured puzzle every day
Levels, XP, and brain time
Rate up and rank globally
ThinkFast turns a few spare minutes into real brain training — no setup, no fluff, just puzzles.
Every day, ThinkFast highlights one featured puzzle. Complete it to count toward your daily goal of 3 games and keep your streak alive.
Play a little each day and watch your streak climb. Your current and best streaks are tracked automatically — no manual logging required.
Every puzzle tracks your personal best as a crown score. Replay your favorites to push your record higher and watch your totals grow.
Earn XP from every game you complete. Level up over time and see exactly how much XP stands between you and the next milestone.
Your rating determines your global rank and tier — from Bronze all the way up to the top of the board. Climb the ranks as you improve.
See exactly how much time you've spent training this week and overall — a simple, honest measure of the habit you're building.
Quick warm-ups or deep logic challenges — pick your tier and dive in.
Merge tiles, chase 2048.
Find numbers in order, fast.
Match every hidden pair.
Repeat the sequence from memory.
Order the scrambled tiles.
Carve the grid into rectangles.
One of each colour per line.
Switch off every light on the board.
Four simple steps to your daily brain workout.
Jump straight into the daily featured puzzle, or browse the full puzzle library by tier.
Choose from 8 puzzles across Standard and Hard tiers — something quick or something deep.
Beat your personal best, earn crowns and XP, and chip away at your daily goal of 3 games.
Watch your streak, level, and Leaderboard rank grow as you keep showing up.
Start free. Unlock every puzzle, both tiers, and the full Leaderboard — anytime.
Download ThinkFast free and finish your first daily challenge in under a minute.
Free to download · iOS & Android · In-app subscription available