Pretty Good, Needs A Bit More
Overall this app is pretty good. If it were free I’d give it five stars. I love that you can customize the haptics. But expectations are a bit higher for a paid app and this could use some more features. The main thing that needs to be updated is including a schedule. For example, Monday-Friday from 11pm - 6am you set the interval every 30 minutes and Sat-Sun 12pm - 4pm it’s every 60 minutes. Some customization like that would bump it up to five stars for sure. Right now you can only choose one interval and you have to manually turn it off and on. Perhaps a bit of a reach but if it used your heart rate to send notifications during REM sleep, that would be outstanding. Lastly, and this is probably on Apple, you cannot receive haptics or notifications on Do Not Disturb, so you have to turn that off thru the night if you want to use this app. Overall I’d recommend the app.