Dual N-Back: Memory Trainer
Boost working IQ, focus, logic
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Adaptive Dual N-Back training built on principles of neuroplasticity. Strengthen working memory, improve attention, and track measurable cognitive progress.
Designed for structured cognitive training, Dual N-Back challenges your working memory daily and helps you build sustained focus over time
Dual N-Back is one of the few cognitive tasks studied in academic research with evidence suggesting improvements in working memory and fluid intelligence when practiced consistently. This app gives you a precise, distraction-free training environment plus the analytics you need to measure real progress.
What you’ll get
- Adaptive Dual (visual + audio) and extended modes, the app automatically raises N-level as you improve.
- Session metrics: N-level, Accuracy (%), Mean Reaction Time (ms), track what's changing, not just how you feel.
- Long-term charts & heat map (Premium): accuracy trends, reaction time improvements, N-level distribution and calendar streaks.
- Guided Plans: 4-Week Boost, Daily Micro-Sessions, and Research-Mode for lab-style protocols.
- Clean, low-distraction UI (Dark/Light), ergonomic controls for thumb response.
- Customizable training environment, adjust voice, haptics and stimulus timing to match your preferred intensity.
Freemium model & Honeymoon trial
Enjoy full Premium access free for the first 3 days and experience the complete training system, unlimited sessions, ad-free focus, and advanced analytics that reveal your long-term cognitive growth. Premium unlocks detailed progress history, deeper performance insights, and structured plans designed for serious improvement.
Who it’s for
- Students and professionals who want measurable boosts in focus and mental throughput.
- Adults looking to keep their memory sharp with short daily practice.
- High-performers and curious minds who treat cognitive fitness seriously.
Start a practice streak today. Train at the edge of your capacity, measure real results, and make cognitive fitness part of your routine.
Privacy Policy: https://greenbisonstudio.web.app/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
The developer, Konstanty Koszewski, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Konstanty Koszewski
- Size
- 28.2 MB
- Category
- Education
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 19 more
- English, Arabic, Danish, Dutch, Finnish, French, German, Hebrew, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Dual N-back Monthly Premium $3.99
- Dual N-back Yearly Premium $29.99
- Copyright
- © 2026 Green Bison Studio