For those who want the Swiss Army knife of task managers.
If you want to be super productive, then you need OmniFocus 2. This powerful task manager app follows the Getting Things Done (GTD) system, where users create projects, custom perspectives, location-based reminders, delegate, and review all of their tasks. While OmniFocus 2 is known to have a steep learning curve and can be quite costly for the entire suite, it is a powerful and fairly customizable solution for those who want the best task management software their money can buy. It's also the best choice if you want to go with the traditional GTD system.
Why we love it
The complexity of the app may scare us at first, but it is one of the most flexible and customizable options out there. There are not many limits with OmniFocus 2, and while it can be expensive for all the apps, it's well worth the cost for productivity nuts like us.