Studyplus, Inc.

Learnings SNS “Studyplus"
Studyplus is a free learning management mobile application which also offers SNS features and various process visualisation.
We are proud to be used by the most high school students in Japan as a study management application to keep getting motivated. Friends do wonders!
We also have a service "Studyplus for school", on top of Studyplus.
It allows teachers to track their pupils' progresses and plan ahead on behalf of them.

https://info.studyplus.co.jp/