GTDNext vs Nirvana : Which is Better?

GTDNext

GTDNext is a task management app available online and works in Chrome, IE and Firefox. Developed by GTDNext

License: Freemium

Categories: Office & Productivity

Apps available for Mac OS X Windows Online Windows RT

Nirvana is a cloud-based task manager that isn’t just about doing more.

License: Freemium

Categories: Business & Commerce Office & Productivity

Apps available for Online Android iPhone Android Tablet iPad

Feature	GTDNext	Nirvana
Outliner
Task Management
Todos
Alexa integration
Dropbox integration
Favorites
Gamification
Recurring tasks
Dependency Tracking
gmail.
Support for Kanban Boards
Hierarchical structure
Infinite hierarchical depth
Export to OPML
Notetaking
Gantt-charts
Kanban Chart
Portable
Export to iCalendar
Task time tracking
Calendar integration
Gmail integration
Google Drive integration
GTD-based
Real time collaboration
To-Do management
Collaborative
Cloud sync
MarkDown support
Search by tags
Protected by Password
Double Donut Chart
Kanban boards
Self-hosted in intranet or private cloud
To do lists
Subtasks
Team Collaboration
Support for Keyboard Shortcuts
Clean design
Full text search
IFTTT integration
Google Calendar integration
Customizable
Emacs integration
Web-Based
Command line interface
Calendar view
Customizable Themes
Things is polished almost to perfection
Convert Email to Task
Project Dashboard