it's really as simple as the screenshot shows, you press the button at the start of your day (whenever that might be), and get a notification when the set interval elapses. when you take your meds, press the button again and it queues the next notification. You still get a notification one interval after your last dose of the day (because the app has no notion of this), but you can then ignore that and it won't bother you again until you record a dose again, thus queuing a new notification again. Timestamp entries are stored indefinitely for now and I might add an export/visualization for those if I really find the need