If you truly want something naggingly persistent, the Due app [1][2] is very full-featured and has an "auto snooze" feature that allows you to have a reminder s

If you truly want something naggingly persistent, the Due app [1][2] is very full-featured and has an "auto snooze" feature that allows you to have a reminder send you a push notification e.g., every 10 minutes, indefinitely. [1]: https://www.dueapp.com/ https://www.dueapp.com/ [2]: https://apps.apple.com/us/app/due/id390017969 https://apps.apple.com/us/app/due/id390017969