This app was mentioned in 9 comments, with an average of 1.44 upvotes
There are a ton of reminder apps. This one may suit your needs Just Reminder
Just Reminder is worth checking out - Simple, full-screen reminders
Also I really liked this one but don't use it anymore: https://play.google.com/store/apps/details?id=in.smsoft.justremind
I wanted the same app and searched for weeks and finally found Just reminder
Just Reminder has full screen reminders. There are probably better options available, but I'd say it's worth checking out.
Try Just Reminder
There are tons of reminder apps. I've used "Just Reminder" in the past, but now I just use a voice command.
Just Reminder or a recurring Calendar item with a reminder set.