# Dual N Back: IQ Brain Training — Memory, Focus & Logic Games > Scientifically proven brain training for fluid intelligence and memory. (iPhone/iPad app by ROMEO ILARIO FLAVIO GAMBINO.) - Source: https://appshunter.io/ios/app/dual-n-back-iq-brain-training/id6775563998 (this page in markdown: same URL + `.md`) - Developer: [ROMEO ILARIO FLAVIO GAMBINO](https://appshunter.io/developer/1874823696) - Category: Games, Productivity, Puzzle, Strategy - Price: Free - Rating: 4.80/5 from 4 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 5 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Russian, Chinese (Simplified, China), European Spanish - Released: 2026-06-03 - Data updated: 2026-08-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/dual-n-back-iq-brain-training/id6775563998/reviews.md ## What is Dual N Back? Ready to push the limits of your brain? Dual N Back: IQ Brain Training is the ultimate brain training application designed around Dual N-Back, the only scientifically proven exercise by neuroscience researchers to improve fluid intelligence (your ability to reason, solve logical problems and adapt to new situations). While most brain games only make you better at their own game, the Dual N-Back actively muscles your working memory. The benefits are transferred directly to your daily life: better concentration, increased mental clarity and faster decision-making. WHY IS THE DUAL N-BACK UNIQUE? The Dual N-Back divides your attention between two simultaneous information flows: visual (a blue square moving on a grid) and auditory (a pronounced letter). Your mission is to determine if the current stimulus is identical to the one presented N laps back. • You start at N = 1 (compared to the previous round). • As soon as you reach 80% accuracy, you unlock the next level (N = 2, N = 3, and beyond!). • For the most athletic brains, take on the Triple N-Back (additional color) or Quad N-Back (additional shape) challenge. THE COGNITIVE MINI-GAME LAB To complete your N-Back training, explore our short and intense cognitive mini-games: 1. Chimpanzee memory: Test your visual-spatial memory by memorizing and clicking on hidden numbers in ascending order. 2. Reaction Time: Measure your brain processing speed to the nearest millisecond. 3. Stroop Test: Strengthen your inhibition and mental flexibility under pressure by resolving the conflict between the meaning of words and their color. 4. Sequential Memory (Simon): Memorize and reproduce increasingly complex sequences of luminous slabs. A FOLLOW-UP OF YOUR PERFORMANCE INSPIRED BY "WHOOP" View your progress with our ultra-detailed premium dashboard: • Cognitive Strain & Focus: Evaluate your overall concentration via a scoring system from S (Legendary) to F (To be reworked). • Precision by Channel: Track your specific performance on position, audio, color and shape. • Evolution Chart: Track the progress of your N levels on weekly, monthly and annual scales. • Statistics & Series: Track your reaction time records, your daily practice minutes and keep your training streak active. PREMIUM FEATURES: • Modern, dark and refined interface (glassmorphism and fluid micro-animations). • High-quality multilingual voice synthesis for audio stimuli. • Dynamic location 100% in French and English. • Immersive haptic feedback for maximum concentration. • Absolute confidentiality: No collection of personal data, no intrusive advertising. Train only 20 minutes a day and start observing concrete results on your concentration and memorization skills in 4 to 6 weeks. Download Dual N Back: IQ Brain Training today and unleash your cognitive potential! ## Key features - Dual N-Back training - Fluid intelligence improvement - Working memory enhancement - Cognitive mini-games - Performance tracking dashboard - Modern interface ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/dual-n-back-iq-brain-training/id6775563998/reviews.md ### 5/5 — Best N-back *2026-07-27* Best N-back app for iOS 100% **Developer response:** Thank you so much for the 100% rating ! Knowing that you consider this the best N-back app on iOS truly means the world to me. Wish you the best on your brain training journey! ### 4/5 — Almost great *2026-07-20* The best n back app I have tried out of like 5. I haven’t been using long, about a week, and have only unlocked quad n back. It is feature rich and seems to be completely free as advertised. I would rate it 5 stars but have come across one issue and one missing feature so far holding it back. The triple n back mode that utilizes color, one of the colors is red and one is pink, among others like green, blue, purple, yellow. The red and pink are way too similar. I’m not sure how this made it in to be honest. The test is about memory, not discerning colors. Use white or orange or anything that isn’t so close. Also, it should allow mixing and matching variables. Let me play triple mode but with position, audio, and shape, instead of color. Also, having color as the third mode as it stands makes it so color blind people are at a disadvantage. I see no benefit to having the modes locked as they are currently. Love the app and looking forward to updates and improvements. **Developer response:** Thank you so much for this thoughtful and detailed review it genuinely means a lot, especially coming from someone who’s tried several other n-back apps. You’re absolutely right on both points. The red/pink similarity is a fair catch: memory training shouldn’t turn into a color-discrimination test, and it puts colorblind users at a disadvantage. I’ll be swapping those for more distinct, accessible colors. And your idea about mixing and matching modes is spot-on letting you build your own combinations (position + audio + shape, for example) instead of locking them makes the app far more flexible, and there’s really no good reason to keep them fixed. Both of these are coming in the next update. Thanks again for taking the time to help make the app better reviews like yours are exactly what push it forward. 🙏 ### 5/5 — 9.8/10 best n-back game *2026-07-20* After playing literally all the n-back games on the App Store this is truly the best one made. Will there ever be a Game Center/leaderboard integration? Would love to compare stats with my friends. Apart from the social aspect it would greatly enhance the game if there was a daily game tracker for streaks for accomplishing certain daily goals **Developer response:** Thank you this genuinely means a lot. Knowing you've tried every N-Back app out there and still call this the best is the highest compliment I could ask for. Good news on both fronts: Game Center is arriving in the very next update. You'll get global leaderboards, the ability to compare your stats with friends, an XP system with 15 ranks to climb, unlockable achievements, and a unified Brain Score that captures your overall cognitive progress in a single number. You also called the roadmap perfectly that same update introduces daily streak tracking (with a 7-day view so you never break your chain), plus Home Screen and Lock Screen widgets that surface your streak, rank and Brain Score at a glance to keep the daily habit going. Deeper daily goals are next on my list. It's built and already in review with Apple, so it should be live very soon. Thank you for taking the time to write this and for helping shape where the app goes next feedback like yours is exactly what I build for. - Roméo, creator of Dual N Back ## Frequently asked questions about Dual N Back ### What is Dual N Back? Dual N Back is a scientifically proven cognitive exercise designed to improve fluid intelligence. It involves remembering stimuli (visual and auditory) presented N steps back in a sequence. ### How long does it take to see results with Dual N Back? Users can start observing concrete results on their concentration and memorization skills in 4 to 6 weeks by training for just 20 minutes a day. ### Does Dual N Back have ads? No, Dual N Back is ad-free and ensures absolute confidentiality with no collection of personal data or intrusive advertising. ### What are the cognitive mini-games in Dual N Back? The app includes Chimpanzee memory, Reaction Time, Stroop Test, and Sequential Memory (Simon) to complement N-Back training and test various cognitive functions. ### Can I track my progress in Dual N Back? Yes, Dual N Back offers an ultra-detailed premium dashboard to track Cognitive Strain & Focus, Precision by Channel, Evolution Charts, and Statistics & Series. ### What devices does Dual N Back support? Based on the provided data, Dual N Back is currently supported on iPhone. ### Is Dual N Back suitable for all ages? Dual N Back has an age rating of 4+, making it suitable for a wide range of users looking to enhance their cognitive abilities. ### How often is Dual N Back updated? The app was last updated on July 24, 2026, indicating regular updates to improve features and performance. ## Version history (last 5 releases) ### 3.5.5 — 2026-08-04 Sound is fixed — plus something new: • SOUND NOW WORKS ON SILENT MODE. If you couldn't hear the letters, this was why. Start a session — it's sorted. • NEW: pick any round count you like, from 20 to 500. Quick session or full marathon, your call. • "No Audio" mode no longer mutes the feedback tones — it only removes the spoken letters, as intended. • Reduce Motion is now respected (Settings > Accessibility). • VoiceOver: training controls are now announced properly. • Many fixes and refinements. Thank you for training with us — keep pushing your limits! ### 3.5.4 — 2026-07-25 • Game Center leaderboards fixed and more reliable. • Smoother, better-synced audio — especially with earbuds. • Refined colors and interface details. • Bug fixes and optimizations. ### 3.5.3 — 2026-07-25 NEW — Custom Mode: build your own training by choosing exactly which variables to track (position, sound, color, shape, quantity, size, border). Great too if you find colors hard to tell apart. Redesigned game colors for maximum clarity, including for color-blind players. Fairer, perfectly ordered leaderboards. Various optimizations and fixes. ### 3.5.2 — 2026-07-24 Our biggest update yet: • NEW: choose your in-game feedback — off, partial or full • Leaderboards redesigned and viewable right inside the app • 30 ranks to climb (up from 15) plus new badges to collect • Smart, adaptive training reminders — never spammy • Now available in Russian and Italian, with 9 new voices • Weekly leagues: coming soon! • Many fixes and refinements Thank you for training with us — keep pushing your limits! ### 3.4.1 — 2026-07-22 GLOBAL LEADERBOARDS Compete worldwide: total XP, Dual through Hepta levels, reaction time and daily streak. 16 GAME CENTER ACHIEVEMENTS From First Steps to Absolute Apex — 1000 points to conquer. YOUR RANK, IN-APP Your world ranking shows right on the Records screen, with a live podium. ROCK-SOLID RELIABILITY Play offline: scores and achievements are queued and submitted automatically once you're back online. FAIR LEADERBOARDS Only complete, genuinely mastered sessions count. Refined light mode and many fixes. ## More apps by ROMEO ILARIO FLAVIO GAMBINO - [SeductMaxx](https://appshunter.io/ios/app/seductmaxx/id6769103325) - [PuffOff: Quit Vaping Tracker](https://appshunter.io/ios/app/puffoff-quit-vaping-tracker/id6789282894) All apps by ROMEO ILARIO FLAVIO GAMBINO: https://appshunter.io/developer/1874823696 ## Related topics [dual and back training](https://appshunter.io/ios/topics/dual-and-back-training) · [dual n back brain game](https://appshunter.io/ios/topics/dual-n-back-brain-game) · [dual n back](https://appshunter.io/ios/topics/dual-n-back) · [n back](https://appshunter.io/ios/topics/n-back) · [dual n back training](https://appshunter.io/ios/topics/dual-n-back-training) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*