[Easy operation]
You can record one tap at a time by tapping the toolbar (action/title bar).
You can change thema by long tap the toolbar.
Tap the list to edit or remove it.
[Menu]
* Switch between list and graph view.
* Edit or remove thema.
* Backup or restore(add new) thema.
* CSV export or CSV import(add) thema.

[Usage example]
* Records, tally, and graphs crop harvests.
* Harvesting can also be managed by crop type, such as tomato, bitter melon, and cucumber.
* Maybe using emojis can be fun.
* Records, tallies, and displays graphs of the number of breastfeedings.
* You can manage your health such as body temperature, urination, and blood pressure.