Wrike is a flexible online task list with it’s own native Android, iPhone/iPod, and iPad apps, and great integration with other tools.

Free and Paid Versions

Wrike has both Free and Paid versions. We recommend the paid version because it allows you to have unlimited number of collaborators (who can assign tasks, attach files, mark tasks complete), unlimited projects, Gantt Charts, time-tracking, workload view, reports, and other features.