I bought this app with the intention to use the reminders/notifications in order to motivate myself to drink more water. And also track the quantity of water I drink everyday, so the I could send the data to my doctor. I have medical condition that makes me have to drink at least 3000ml of water each day. I wanted to configure reminders from 30 to 30 minutes. But only after I bought the app I discovered that you can only configure 31 reminders. I dont count when I sleep so if the app had, lets say 38/40 rinders max it would be ok The wifi "backup & restore" feature that they announce dont work either. And if you leave the app at least in the version Im now you screen will freeze for 4 seconds. Im really disappointed. Ps. The support for this app is good they answer right away.