# N-Back Training

> Daily Brain Training in 5 Min

Canonical page: [https://chrome-stats.com/d/id1627478554](https://chrome-stats.com/d/id1627478554)

## Overview

- **ID:** `id1627478554`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** chunson yamada
- **Category:** Education
- **Version:** 3.1.1
- **Last updated:** 2026-02-01
- **First published:** 2022-07-17
- **Size:** 21 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/n-back-training/id1627478554)
- **Website:** [https://note.com/toastar/n/n9e6b03d99470](https://note.com/toastar/n/n9e6b03d99470)
- **Privacy policy:** [https://note.com/toastar/n/n9e6b03d99470](https://note.com/toastar/n/n9e6b03d99470)

## Description

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.

## Rankings

- #1,971,821 — Overall

## Similar extensions and apps

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- [Dual N-Back: Brain Trainer](https://chrome-stats.com/d/id6783484280) — 5.00 / 5
- [Daily Brain Training](https://chrome-stats.com/d/id1088644441) — 4.60 / 5
- [N-Back Hz](https://chrome-stats.com/d/id6761011363)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1627478554)