Here are the limits in Lean Library Workspace for projects, tags, and shared project members:
30-Day Trial and Free 'basic' subscription:
- No limits on the number of references you can import
- Up to 3 projects. This limit only applies to private and shared projects you create yourself, it doesn't include subprojects, or other people's shared projects that you've joined
- Up to 3 invites per shared project
- 25 tags per reference
- 200 tags total
Premium subscription (Includes complimentary, institutional and lab subscriptions):
- No limits on the number of references you can import
- Up to 250 projects. This includes private and shared projects, subprojects and archived projects
- Up to 450 members per shared project
- 25 tags per shared project
- 200 tags total