When comparing Wekan vs Quire, the Slant community recommends Quire for most people. In the question“What is the best cross-platform to-do list app?” Quire is ranked 36th while Wekan is ranked 58th.
Ranked in these QuestionsQuestion Ranking
Pro Open source
Open source software benefits from collaborative development from the user community.
Pro Easy to create instance on sandstorm.io
Wekan is available as an app on sandstorm.io. For personal use, it may be sufficient to run an instance in a free sandstorm account.
Pro Can easily be integrated with NodeJS apps
Since it's built using Meteor, it can easily be integrated with existing NodeJS apps.
Pro Cross platform, sync and offline usage
Pro Organizations, projects, task, hierarchical subtask and smart folders
Unlimited tasks/todo structures
Pro Integration with calendar and github
I haven't dabbled with that though
Pro Multiuser handling
Handle multiple users and assignments
Pro It is free
As of now, at least.