Checking off is a simple app that lets you create to-do lists or to-do lists without much effort. You can create categories yourself. Within the categories entries can be written, which you can check off later easily. The overview shows how many unfinished entries still exist in the categories. The app is self-explanatory and you can customize it very individually. Create your Todo list easily and quickly on your smartphone. Checking has even integrated a reminder function. The check lists can now also be shared.