Klaro.app

Live 1 vs 1 battles, Lightning Round and 5 cognitive modules. Train your brain every day, race the clock and challenge a friend in real time.

Klaro is brain training that actually works. Five cognitive modules, daily challenges and live 1 vs 1 battles, all in a quiet, focused app that respects your time.

Train your mind in short sessions. Build your streak. Climb the levels.

WHAT YOU GET

Five cognitive modules

• Math: arithmetic and numerical reasoning
• Common Sense: logic and everyday situations
• Memory: sequences and patterns with a separate memorize phase
• Trivia: geography, history, science and world culture
• Words: vocabulary, synonyms and definitions

Daily Challenge A fresh set of 10 questions every day. Keep your streak alive, earn bonus XP and climb the seasonal tiers.

Live 1 vs 1 battles Challenge a friend in real time. Share a room code, pick your modules and play 10 questions head to head. The final 2 questions are the Lightning Round and count double points. No matchmaking lobbies, no wait, just you, a friend, and your reflexes.

Endless Marathon Three lives, infinite questions. How far can you go before you miss three?

Race the clock Speed mode rewards fast answers with double XP. Train your reflexes alongside your knowledge.

29 achievements Track every milestone, from seven-day streaks to perfect marathons to lightning wins, in one place.

Real stats A 30-day activity heatmap, accuracy by module, and a clean progress view that shows where you actually improved.

WHY KLARO

No tracking. No social feeds. No spam. Just brain training, quiet and well made, with a quick session that fits between meetings.

Klaro works offline for solo modes, perfect for the subway, a plane, or anywhere with bad signal.

WHAT MAKES IT DIFFERENT

• Adaptive difficulty: questions adjust to your level without ever showing labels
• Smart streaks: your streak grows in tiers, with a free shield to protect a slip-up
• Privacy-first: anonymous IDs only, no accounts required
• Built for short sessions: a daily round takes about three minutes

Available in English and Spanish, with more languages on the way.

Free with optional Pro tier (ad-free and extra customization). The full game loop is free forever.

Train your mind. Klaro.

Privacy policy: https://burrnny.com/klaro/privacy.html

Suitable for all ages. No offensive content.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/