"CheckItOff" is a checklist app for iPhone and iPad.

Here are some features of this app:

1) Completely free
2) No ads
3) You can select images from your own photo library to set at the top of your checklist
4) The theme color can be chosen from a color picker, enabling you to customize your own checklist
5) The background color of ToDo items can also be chosen from the color picker
6) By adding a space at the beginning of a ToDo item, you can turn off the check display, allowing it to be used as a notepad
7) You can choose the font you want to use
8) To accommodate for presbyopia, you can select text sizes up to 50 pt
9) Fully supports dark mode
10) Authentication feature is also available

Download and try it out if you're interested.