Daily task tracker

I'm new to this sub, so if this has been asked before, apologies. I currently write down what I have done during the day everyday. I do this in an unmanageable text note. I was wondering if there is an app that I can enter daily tasks. I downloaded todoist, which seems to be popular, but I can't add tasks for previous days. This really isn't a "to do" app, but a "have done" app.

Does anyone know of something like this?