Dual N-Back: Brain Training
Memory & Focus Workout Game
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Now with light mode, sharper progress tracking, and a rebuilt game engine for perfectly precise timing.
Elite Viber is a science-backed Dual N-Back brain training app designed for people who take their cognitive performance seriously.
Dual N-Back is one of the most researched cognitive training methods in existence. Studies suggest consistent practice improves working memory — your brain's ability to hold and process information in real time — which underpins focus, problem solving and fluid intelligence.
How it works:
A 3x3 grid lights up and a letter is spoken aloud each round. Your job is to remember both the position and the letter from N turns back. When the current position or letter matches what appeared N turns ago, tap the corresponding button.
Simple to learn. Genuinely challenging to master.
WHAT MAKES ELITE VIBER DIFFERENT
Most Dual N-Back apps have a flawed algorithm — once a cell lights up, it appears again more than it should, making the game feel repetitive and defeating the scientific purpose. Elite Viber uses a mathematically correct sequence generator with pre-planned match rates, true uniform cell distribution and anti-lure protection. Every session is a fair, genuine cognitive workout.
FEATURES
— Dual N-Back at N-2 level
— Mathematically fair sequence algorithm
— Real-time Position and Sound accuracy tracking
— Full session results with combined score
— Round-by-round detailed history
— Correct, incorrect and missed breakdown
— Daily training streak tracking
— Personalised daily reminders
— Silent mode for training anywhere
— Haptic feedback
— Export your session history
— Built for all modern iPhones
BUILT FOR INTELLIGENCE
Elite Viber is not a game. It is a training tool. No ads. No distractions. No gimmicks. Just clean, focused cognitive training every day.
Start your first session today.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Start with a 7-day free trial on Pro
- Faster, cleaner experience
- Bug Fixes
The developer, FARUQ BATULA, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- FARUQ BATULA
- Size
- 1.2 MB
- Category
- Education
- Compatibility
Requires iOS 16 or later.
- iPhone
Requires iOS 16 or later. - iPod touch
Requires iOS 16 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Elite Viber Pro — Lifetime $19.99
- Elite Viber Pro — Yearly $11.99
- Elite Viber Pro — Monthly $1.99
- Copyright
- © 2026 Elite Viber