When comparing Nirvanahq vs Momentum, the Slant community recommends Nirvanahq for most people. In the question“What are the best GTD apps?” Nirvanahq is ranked 4th while Momentum is ranked 14th.
Ranked in these QuestionsQuestion Ranking
Pro Solid project management
Pro Allows setting how much effort a task will take
You can set how long a task will take and how much effort will it ask of you on a scale of 1 to 3.
Pro Use start dates
A vital functionality in a GTD app.
Pro Allows adding items via email
Pro Beautiful interface
Clean, intuitive user interaction. The design is very thoughtful. Somehow it makes Things feel clunky, despite obvious similarities of all GTD platforms.
Pro Can email focus list
The app can send you the most important items for the day in an email.
Pro Allows to add postponed tasks
You can postpone a task. It helps not to clutter task lists up until you really need them.
Pro Beautiful interface
Clean, intuitive interface — both desktop and mobile. Lots of intelligent design thinking behind this. Somehow makes other GTD apps like Things feel clunky, despite similarities.
Pro Native support for Areas of Responsibility
Pro Automated Next Steps
Next steps have a separate view. Tasks can be updated sequentially or parallel.
Pro Projects and Tasks can be endlessly nested
You can nest multiple projects with tasks, there is no limit.
Pro Has an offline mode
No permanent internet connection needed.
Pro Specifically designed for GTD
Web-based, progressive-web-app (PWA).
Pro Realtime synch
Data instantly updates on all devices.
Pro Clean design
Lots of space helps focus on the tasks.
Con Does not integrate with other apps or services
Con No native desktop applications yet
Currently the only way to access the app on a desktop machine is via a webapp.
Con No way to work with teams
This is a one-person solution, there is absolutely no ability to share projects with others.
Con No way to add sub-projects
Con No bulk (copy/paste) feature
Con Limited features in the free version
Free version limited to 5 projects, 3 reference lists and 2 areas.
Con No attachments
Can't add any attachments to the tasks - no photos, no pdfs.
Con No way to color-code projects
Con No recur upon completion option
If you have a daily recurring task, it will recur every day regardless if it's been completed the prior day.
Con No desktop widget
Con Beta interface is confusing for first-timers
The interface is very opinionated (this is a good thing). But it is not obvious how to map user's own GTD variant onto the one the author has in mind. Maybe after it is in production, there will be better on-boarding.