Proton
- Free Plan
- Yes
- End-to-End Encryption
- Yes
- Max Users (Business Plan)
- Unlimited
- Calendar Sharing
- Yes
Shore
- Free Plan
- Yes
- Starting Price (Paid)
- Varies
- Team Members (Free Plan)
- Varies
- Project Management
- Yes
- File Storage
- Yes
- Asynchronous Communication
- Yes