Although there are various apps of an answer selection type, can you really master?
"Let's learn anything by writing" is the app for learning anything by writing.
You can set a learning mode to each questions, it is easy to learn by asked repeatedly.

[Features]
- Make clear leaning questions and not learning questions, so you can learn efficiently.
You can set any one of 5 modes to each questions:
+ "I already KNOW"
This question is not asked anymore.
+ "I LEARNED"
This question is not asked anymore.
+ "I want to learn, I am LEARNING"
This question is asked repeatedly.
You can change how often you are asked "LEARNING" questions.
+ "I do NOT LEARN"
This question is not asked anymore.
+ "UNSPECIFIED" (default)
This question is asked at random.
- By writing, it is easy to learn.
- You can make and edit workbooks yourself in this app or by using text editors, etc.
- When making workbooks, you can set not only "Question", "Answer", but also "Hint", "Supplement".
- This package includes only a sample workbook.
Please install and add workbooks separately.
Now the provided English workbook is as follows.
+ Elementary Japanese Kanji Practice
https://play.google.com/store/apps/details?id=jp.aqsoft.nankaki.elekanji

You can not only edit questions in this app, but there is a workbook editor for Windows OS.
http://www.aqsoft.jp/NankakiEditor/index.html
(English / Japanese UI auto-switching)
You can edit efficiently with a wide screen and a keyboard.

* Some icons designed by icons8( https://icons8.com/ ).