I’ve been using TickTick for a while now. It syncs with my Android phone and work computer pretty cleanly. It handles notifications, recurring tasks, skipping a task until the next time, habits tracked differently than tasks, etc. I don’t use the premium stuff and it doesn’t have ads in it. So, it’s free for me.

I’ve got a keyboard shortcut on my computer ,so I can quickly add new items on the fly. The entry has basic language parsing to pick out the date and things. I can just enter “every monday check the mail #life” and it’ll set up and tag the task automatically.

I’m working on finding good ways to make sure that I actually follow my to-do at work instead of latching on to the top item and getting lost on it for the whole day, but it’s working for now.

I set my wife’s phone up with the MyTherapy app. I like (and she hate-likes) that it has its own notification rules separate from the built-in alarms, so her meds notifications are set to make noise every 5 minutes until she actively dismisses it (usually once she’s actually gotten around to taking what she needs to take). Doesn’t always work, but tends to work. I haven’t tried messing with the refill reminders; I should look into that for her.