N vs N

Train your working memory with N-Back. N-Back is a focused brain-training game built around the Dual N-Back task: remember where the square appeared and what letter you heard, then respond when either one matches N steps back. It is simple to learn, hard to master, and perfect for short daily focus sessions. WHY N-BACK? Dual N-Back is widely used in cognitive training and working-memory research because it asks your brain to hold, update, and compare information in real time. N-Back turns that task into a clean daily practice you can actually stick with. FEATURES: 20-Day Challenge Build a consistent habit with a structured daily program. Track your streak and finish bite-sized sessions without overthinking what to do next. Dual Visual + Audio Training Follow both the grid position and spoken letters at the same time. Train attention, memory, and response control in one compact exercise. Adaptive Difficulty The challenge grows with you, keeping sessions demanding without making them feel random or impossible. Practice Mode Train without affecting your streak. Adjust the N-level and experiment at your own pace. Progress Stats See your sessions, scores, streaks, and level changes over time so improvement feels visible. Clean, Focused Design A minimal interface keeps the exercise front and center. No clutter, no gimmicks. HOW TO PLAY: Position Match: tap when the square matches the position from N steps back. Sound Match: tap when the spoken letter matches the one from N steps back. Dual Task: track both at once and push your working memory. Start with a short session today and build the habit. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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 • iCloud sync keeps your training data on every device ◆ 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 ◆ SIMPLE PRICING • Free to use with occasional ads (never during training) • Optional Premium subscription removes all ads. Every training feature stays free ◆ 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. Premium is an auto-renewing monthly subscription. Payment is charged to your Apple Account, and the subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple Account settings. Terms of Use: https://fukuidinotech.github.io/nback-training-site/terms.html Privacy Policy: https://fukuidinotech.github.io/nback-training-site/privacy.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/