# Common English Mistakes of Japanese Learners

> Common English Mistakes of Japanese Learners (iPhone/iPad app by james rogers.)

- Source: https://appshunter.io/ios/app/common-english-mistakes-of-japanese-learners/id917125672 (this page in markdown: same URL + `.md`)
- Developer: [james rogers](https://appshunter.io/developer/885785423)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 8.0 · 19 MB
- Languages: American English, Japanese
- Released: 2015-07-16
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/common-english-mistakes-of-japanese-learners/id917125672/reviews.md

## What is Common English Mistakes of Japanese Learners?

Hi!  My name is James Rogers.  I’m a university professor with over 10 years teaching experience, and have used my PhD research and discoveries made by my over 30 member research team to provide learners with resources to help make language learning more efficient.  I hope that you find them useful on your journey learning a foreign language.

This app presents the most common 200 mistakes Japanese students of English make. 　Every mistake was taken from a real mistake made by a Japanese learner.  These were collected from over 80,000 words of student writings which were collected and analyzed to identify the common errors students make (this study was also published as a research paper as well).  By mastering these 200 common errors, Japanese learners can significantly improve on their accuracy using English.　　

This app’s contents were written by myself and translated by university professor Mayumi Uchida, and is a collaboration with the best-selling app Flashcards Deluxe.  This app features one of the most advanced Leitner algorithms on the market to help you learn more efficiently: you mark items you don’t know wrong and they come back more often, giving you the necessary exposure to master them.  Items you mark correct don’t come back as often, so you don’t have to waste your time with items you already know.  This method is proven by linguistics research to be the most ideal way to learn.  This app also automatically sends all items you miss often to a special “tough item” folder to make it easy for you to concentrate on them.  Also included is a custom quiz function which you can use and send your results to your teacher with via email.  

We hope this app helps you to improve your English!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 200 Common English Mistakes | $2.99 | one-time |



## Version history (last 5 releases)

### 1.4 — 2017-09-11

This app has been updated by Apple to display the Apple Watch app icon.

Content update.

### 1.3 — 2017-06-01

Updated content

### 1.2.5 — 2016-12-22

Content updates.

### 1.2.3 — 2016-09-06

Quiz submission mode.

### 1.2.2 — 2016-06-21

Contents updated.

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## More apps by james rogers

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- [英语发音学习 (English Pronunciation for Chinese Learners)](https://appshunter.io/ios/app/english-pronunciation-for-chinese-learners/id905737971)
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All apps by james rogers: https://appshunter.io/developer/885785423

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*