When comparing Momentum vs Joplin, the Slant community recommends Joplin for most people. In the question“What is the best cross-platform to-do list app?” Joplin is ranked 26th while Momentum is ranked 45th.
Ranked in these QuestionsQuestion Ranking
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.
Pro Supports markdown
Pro Offline access
Supports Windows, Mac, Linux, Android and iOS.
Pro Supports tags for notes
Pro Supports multiple languages
English, French, and Spanish.
Pro Supports file attachments
Pro Web Clipper
Browser extension saves full pages, clean content, or screen selections to new notes.
Pro Open source
Peace of mind that there is no malicious piece of software in the app.
Pro Nextcloud support
Pro Active user forum with support from app creators
Support, troubleshooting, and new feature requests are easy to make at the user forum and you can contact the app creator directly.
Pro Optional CLI interface
Provides a CLI interface for terminal lovers.
Pro Timed alarm reminder for to-do lists
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.
Con No native apps
Con In Beta (development)
Con Sync issue under Linux
The Linux client has a bug that requires the user to click the mouse frequently in order for sync to proceed. This bug has been open for a while.