Train your memory and focus with number memory, word sequence, and reaction time games. Track personal bests and daily streaks. Free brain trainer, no signup.
Research shows targeted cognitive training can improve performance on trained tasks. Consistency matters most — 10-15 minutes daily of varied cognitive challenges is more effective than occasional long sessions.
Working memory is the ability to hold and manipulate information temporarily in your mind. It is used for following instructions, mental math, and reasoning. Our number and word sequence games specifically train working memory capacity.
Average human reaction time is 200-250ms. Athletes and gamers average 150-200ms. Under 150ms is exceptional. Our reaction time test measures your visual response time and tracks improvement over time.
The average digit span is 7 ± 2 digits (Miller's Law). With practice, you can extend this using chunking — grouping digits into meaningful units (like phone numbers). Our number memory game tracks your improvement.
Most people perform best on cognitive tasks in the late morning (10am-12pm) when alertness peaks. Avoid training when tired or after meals. Consistent daily practice at any time produces better results than sporadic optimal-timing sessions.
Spaced repetition schedules reviews at increasing intervals — 1 day, 3 days, 7 days, 14 days — right before you forget. It is the most efficient method for long-term retention, used by language learners and medical students worldwide.