Cron - Simple alarm

There are things you need to do repeatedly in your busy life.
Sometimes you may not remember having a busy life.
Cron is a simple notification app.
You can set various periodic alarms such as time to drink, time to go to work and time to take medicine.
How about getting up from your desk for a while while working for your health?
How about drinking water?
Don't forget to use Cron's alarm!