Scientific evidence shows this exercise can significantly boost your working memory.

Working memory is a memory buffer of your brain, responsible for holding and manipulation of information.

Multiple studies suggest that improving brain's working memory increases fluid intelligence. Dual N-Back is the same exact exercise performed by test subjects during experiments.

The app mimics the rules and mechanics of original experiments as close as possible giving you at the same time:
- Competitive features (Game Center and leaderboards)
- Configurable reminders to help you stay on track
- Extensive statistics to analyze your progress

Also, the app requires no internet connection for the most of its features.