N vs Dual N Back

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/

頭が良くなる脳トレ「Dual N-Back」 科学的研究でワーキングメモリの強化が実証されているDual N-Backを、誰でも直感的に楽しめるアプリにしました。 【遊び方】 9マスのグリッドに色と文字（または絵文字）が表示されます。N回前と同じ色・文字が出たらボタンを押すだけ。シンプルなルールで、気づけば本気になれます。 【3つのモード】 アルファベット：集中力を鍛えたい大人に くだもの：かわいい絵文字で子供も楽しめる どうぶつ：動物好きにおすすめ 【特徴】 ・自動難易度調整：正答率に応じてNレベルが上下するので、常に適切な難しさで続けられる ・間違えてもやり直せる：ボタンをもう一度押すとキャンセル可能 ・記録を自動保存：セッションごとの正答率とNレベルの推移をグラフで確認 ・広告なし・完全オフライン：通信不要でいつでもどこでも集中できる 【こんな方に】 ・記憶力や集中力を上げたい ・子供と一緒に脳トレを楽しみたい ・スキマ時間を有効活用したい 毎日1セッション（約1分）から始めてみてください。