It does support some AppleScript, but it was not as nice as OmniFocusвЂ™s the last time I used it. Tasks cannot block each other, so you will see everything that is available regardless of order. OmniFocus is unique in that regard as far as I can tell. Projects cannot be nested, but Things 3 does support headings within projects that are functionally similar to action groups in OmniFocus (minus the ability to arbitrarily nest them). If you want contexts, you have to create tags for contexts and filter by tag. Things offers a GTD-inspired model, but it is not specifically a GTD application. OmniFocus also has a robust AppleScript dictionary, and you can customize perspectives and their layouts but those are вЂњProвЂќ features locked behind an IAP. You can nest projects as deeply as youвЂ™d like (nested projects are called action groups), and projects can contain repeating tasks. Tasks can be sequenced, so you will only see tasks that are not blocked by other tasks when looking at your contexts. Its tools for organizing your tasks are also more powerful. You can look at your tasks either in their projects or in their contexts.

OmniFocusвЂ™s basic model is a more purist approach to GTD. That's a difficult question to answer because it depends heavily on your workflow and needs. How does this compare to Omnifocus? I'm looking for something like both of these, but not sure what the advantages and disadvantages are.

Things 3 vs omnifocus 2