[bkb]

This would be a killer Apple Watch app.

[hammock]

Who needs an Apple watch? Timex digital watches have been dinging every 60 minutes for decades.

[ceor4]

Agree, especially with just a gentle vibrating reminder that turned itself off after a second. I've tried a few of these, and the problem they all suffer is obnoxiously intrusive notifications. It's not an alarm clock, if I miss one it's fine.

[ptrk]

Agree, it's more about noticing whether or not you're focused than it is being forced into a workflow.

[KC8ZKF]

Doesn't "Breathe" do this?

http://www.macrumors.com/2016/06/13/apple-breathe-app-for-ap...