App Profile: Dual N-Back ADHD Focus Game

■ What is Dual N-Back
Dual N-Back is a scientifically proven brain training app that strengthens your working memory, concentration, and cognitive abilities.
With consistent training, it helps improve your IQ, memory, and thinking speed.

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■ Basic Rules
The rules of Dual N-Back are simple, yet your brain works harder the more you play.

* Remember the sequence of positions and letters displayed on the screen.
* When the current position or letter matches the one shown N steps earlier, press the corresponding button.
* Each correct answer sharpens your memory and focus — like a workout for your brain.
* The challenge continues until all lives are lost, testing your concentration and endurance.

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■ Main Features
* Difficulty Adjustment: Choose from N-2 to N-5 and train at your own level.
* Progress Visualization: Track your training volume with graphs and see your improvement through the average correct answers per game.
* Statistics and Calendar: View summarized stats such as play count, accuracy rate, and average score. Review your progress on a calendar to stay motivated.
* Global Ranking: Compete with players around the world and challenge the limits of your brain.

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■ The More You Play, the Stronger Your Brain Becomes
Just a few minutes a day — on your commute or during a break — can make a real difference.
Every session helps your brain grow stronger, step by step.

Take one step today to evolve your mind.