A software expert. Just purchased this app. It's generally OK, but I am not very impressed. The most glaring issue is that you are confined to the app's predetermined reminder intervals. you have NO option to create your own time intervals (i.e. 12 hours before, 18 hours before, 4 days,5 days before, etc.). They say this app is customizable, as long as it's the developers choice of customizations. look elsewhere if you want total customization. I'll look for more deficiencies and report back.