This to do application is the best I have found. Believe me I have downloaded over 30 to do apps on my iPad and iPhone. I keep coming back to this one. I have now deleted all the others.
The only thing that was missing was a tag or context so I kept looking at other apps. I finally came up with the perfect solution and it works wonderfully, I simply use an Emoji for each context I need. I put it at the end of the title line. I use the house for home, a little car for errands, a briefcase for my work and an hour glass for waiting. They work very well as you can see the pictures on the screen and quickly see tasks for where you are, you can also search for the Emoji in the search feature and see all tasks with that emoji throughout your lists.
With that tip in place this is now the perfect app for me. I repeat many of my projects so the templates are perfect for just hitting a button and having that project show back up as a list. This app is very simple and very effective.
Debt free master about Priorities