This app is awesome
I started using this app to get me more focused when I start work, but now I use it as a meditation reminder. Its perfect the way you can set the time of the reminder and then the duration of the alarm.
For example, I set it to remind me to meditate on the half hour and then set the duration of the meditation to 2 minutes. But you could set those times to anything you want... or to remind you to do any kinds of repetitive practice.
Harriet and Mickey about
Focus Keep Free : Work & Study Timer, v1.8.4