Remind Me is a minimal reminder.
This app UI might be easy for Mac reminder users.

Remind them to remind you of a forgotten schedule.
You can add a task or an appointment to an app and have it notify your device at the date and time you want to remember. For example, it's like sending yourself a noted notification email with a timer.

You can use it as a shopping list or a list of things to do, especially if you don't specify a notification date and time.