N-Back — Dual N-Back Training

Train your working memory

Free · In‑App Purchases

Every N-level unlocked from day one. No ads, no account, fully offline — the free tier is a complete daily trainer, not a demo. The classic dual n-back task, built the way a concentration game should be: no ads, no account, and nothing you do ever leaves your phone. WHAT IS DUAL N-BACK? A square lights up on a 3×3 grid while a letter plays. Your job: tap when the position — or the sound — matches the one from N steps back. It starts gentle at 1-back and scales as far as you can handle. Dual n-back is one of the most studied tasks in working-memory research, and this app follows the trial structure of the original Jaeggi et al. (2008) protocol. EVERYTHING YOU NEED TO TRAIN • Guided tutorial — learn 1-back in two minutes, no jargon • Full dual n-back (position + sound) at any N-level, free • Adaptive difficulty — the app suggests moving up or down based on your results, or handles it automatically with Pro • Instant feedback — color flashes for hits, misses, and false alarms, with glyphs for color-blind players • Statistics — hit rates per stimulus type, difficulty trends, games played, streaks • A daily reminder you control, dark mode, haptics PRO, IF YOU WANT MORE One upgrade unlocks color and shape stimuli (up to quadruple n-back), automatic level progression, your full statistics history, and match-rate tuning. Subscribe monthly or annually (the annual plan starts with a 7-day free trial). Prefer to buy once and own it? Lifetime is a first-class option, not an afterthought. PRIVATE BY DESIGN The app works completely offline. No account, no tracking, no third-party SDKs, and no analytics leaving your device — the App Store privacy label reads "Data Not Collected" because there is nothing to collect. Your training history belongs to you and stays on your iPhone. AN HONEST NOTE ON "BRAIN TRAINING" Research on whether n-back gains transfer to broader abilities is genuinely mixed, and we won't pretend otherwise. What we promise is a faithful, distraction-free version of the classic task and a clear view of your own progress. You will get better at n-back — where that takes you is your experiment. Questions or feedback: nback.app.contact@gmail.com Terms of Use: https://mpskowron.github.io/nback-legal/terms.html Privacy Policy: https://mpskowron.github.io/nback-legal/privacy.html N-Back Pro subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Unused trial time is forfeited when a purchase completes. Lifetime is a one-time purchase, not a subscription.

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The developer, MICHAL PAWEL SKOWRON, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    MICHAL PAWEL SKOWRON
    Size
    6 MB
    Category
    Education
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Pro Monthly $3.99
    • Pro Annual $19.99
    • Pro Lifetime $29.99
    • Learn More
    Copyright
    © 2026 Michał Skowron
  • Privacy Policy

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