・Notify when there is a day to review and show the number of reviews to be done today with badges.
・You can freely set review dates like 1 day, 7 days, 14 days and 24 days (every 24 days thereafter).
1. Register a book to study (name, image, number of pages, basic schedule etc.)
2. Tap on the registered book and register the larning record you did. (Start page, end page, etc.)
3. The review schedule will be registered.
4. A check box will be displayed in the review schedule before today, so check it when review is over.
5. If repeate of settings is on, the next schedule will be automatically registered after checking.
## Useful functions
Schedule swipe menu
* [Rereview]… It will add a schedule if you want to review the same place only tomorrow.
* [PostPone]… It will postpone the schedule to tomorrow.
Menu by the day
* [Postpone one day] … All schedules of that day will postpone to next day.
* [Shit one day] … All schedule after that day will be delayed a day.