Nirvana is a secure, cloud-based GTD® task manager accessible from your desktop web browser and mobile devices. If you have more to do than you can manage in your head, or if you want greater clarity of mind and focus in life, Nirvana is for you.
Conqu is an easy to use yet powerful task management tool designed to help you conquer your inbox and get things done. With Conqu, you can organize the tasks by criteria that makes sense to you and then find the right task to do at the right time and place.This app doesn't have any features at the moment.Discontinued
iOS app last updated in 2012, Android app in 2013.
Huddle is online collaboration & content management for the enterprise. It gives you a network of secure online workspaces where you can store & share files, collaborate on documents, manage tasks & create discussions.