Brain Only

AI answers everything now. Brain Only gives you a few minutes a day to do the thinking yourself. Every day there's a new challenge: 5 short puzzles, about a minute each. No AI, no searching, no shortcuts. Just you. HOW IT WORKS • 5 puzzles a day, about 5 minutes • Difficulty adapts: harder after a right answer, easier after a miss • Stuck? Get a hint after 20 seconds: a nudge, never the answer • Missed it? One more try, then the answer and why WHAT YOU'LL TRAIN 🎯 Focus & memory 🧩 Reasoning 🧮 Mental math 🔤 Language 💡 Creative thinking 💸 Money & media 100 puzzles, each with its own animation. Many link to a short "Learn more" page, from the Monty Hall problem to the rule of 72. WATCH IT ADD UP • Keep a daily streak going • See a calendar of the days you played • Track how you do in each skill over time • Share your result as a 🟩🟨⬛ grid Play without an account. Sign in with Google or email to sync across devices. BRAIN ONLY PREMIUM (optional) • Bonus round: 5 more puzzles a day • Unlimited practice by topic • Review your mistakes • Weekly hard challenge • Streak freeze, once a week Monthly or yearly, with a 7-day free trial on yearly. Cancel anytime in Google Play. AI off. Brain on.

Your daily 5-minute brain challenge: the same 5 puzzles for everyone, no AI allowed. Share your result and see how you did against other players.