N-Back Training vs NBack 3D Utilisation & Stats
I wanted to play "Oni Keisan" on my iPhone!
That's why I created this N-Back brain training app.
What is this training?
Solve calculations while remembering the answers from a few questions back.
Juggling "memorizing" and "calculating" at the same time gives your brain a real
workout.
Features
◆ Two Input Modes
- Tap Mode: Quickly tap the answer
- Handwriting Mode: Write numbers directly
◆ Build Daily Habits
- Set daily play goals
- Track your streak
- Record how you're feeling today
◆ Track Your Progress
- Accuracy trends
- Level-up history
- Play history
◆ Customize Your Way
- Adjust question count & time limits
- 3 color themes
- iPhone & iPad support
Perfect For
- Those who want to play Oni Keisan without a dedicated game console
- Anyone looking for a quick mental exercise
- People who want to build a daily habit
Just 5 minutes a day. A casual brain training experience.
- Apple App Store
- Gratuit
- Éducation
Classement dans le store
- -
The task is only to count the 3D shapes of the specified shape and color, but as the N of the N ‘Back increases, it becomes more difficult.
*N’Back : The current answer matches the one from N steps earlier in the sequence.
*1’Back
1 task1: count & memorize
2 task2: count & memorize
3 answer for task1
4 task3: count & memorize
5 answer for task2
6 task4: count & memorize
:
*2’Back
1 task1: count & memorize
2 task2: count & memorize
3 task3: count & memorize
4 answer for task1
5 task4: count & memorize
6 answer for task2
7 task5: count & memorize
:
- Apple App Store
- Gratuit
- Éducation
Classement dans le store
- -
N-Back Training VS. 
NBack 3Djanvier 20, 2026