App that allows you to add separate tasks to your lock screen?

I use notifications to remind me to do all my tasks (emails, calendar alerts, etc) and keep them there until the tasks is done. However some apps remove the notification after a certain amount of time. Unfortunately if the notification goes away, I completely forget about it.

Are there any apps y’all recommend that let you create tasks/reminders that will stay on the lock screen? I know there are tons of to do list apps out there but most of them show your tasks as a whole list, so I can’t swipe away each task as I do it. Bonus points if I don’t have to set a date and time for a reminder - I can just pop it in and it shows up on the lock screen. Thanks!