N-Back Brain Trainer

A daily training app based on the N-Back task, widely used in cognitive psychology research. Challenge your working memory with just 5 minutes a day.

◆ 3 TRAINING MODES

• Single — Position: Memorize lit positions on a 3×3 grid

• Single — Audio: Remember spoken letters via text-to-speech

• Dual — Position + Audio: Train both at the same time for the ultimate challenge

◆ TRACK YOUR GROWTH

• Accuracy trend chart and session history

• Highest N-level reached

• Streak counter to build a daily habit

◆ COMPETE & ACHIEVE

• Game Center leaderboards: accuracy, max N-level, streak

• 8 achievements from your first session to 30-day streaks

◆ DESIGNED FOR FOCUS

• Zero ads during training — your concentration comes first

• Clean, minimal interface inspired by fitness tracking tools

• iCloud sync across all your devices

◆ SIMPLE PRICING

• Free to use with occasional ads (never during training)

• One-time purchase of $3.99 to remove all ads — no subscriptions, no hidden fees

◆ ADJUSTABLE DIFFICULTY

• N-1 to N-9: start easy and progress at your own pace

• Suitable for students, professionals, and anyone looking to challenge their cognitive abilities

Note: This app is a cognitive training tool based on the N-Back task used in research. It is not a medical device and does not diagnose, treat, or prevent any condition. Improvement in cognitive function is not guaranteed.