I tried a number of smartphone apps, but now use the free Medisafe app on my iPhone. (It's also available on Android).

A number of my meds need to be taken at specific times, some with meals, and others totally away from food. The Medisafe app allows me to schedule reminders for whatever time I want for each med. I also have an Apple watch, and it also has a Medisafe app, so my reminders show up on both my smartphone and on my watch, and I can record the time I take each med from either the phone or the watch. The snooze function is very helpful for reminders that pop up at times when I cannot immediately take the meds, such as when I'm driving.

I highly recommend using this app.

- Otto