Atto
- Free Plan
- Yes
- Starting Price
- Varies
- Real-time Collaboration
- Yes
- Integrated Messaging
- Yes
- Document Sharing
- Yes
- Project Management
- Yes
Zenzap
- Free Plan
- Yes
- Starting Price
- Varies
- Real-time Collaboration
- Yes
- File Storage
- Varies
- Team Integration
- Yes
- Video Conferencing
- Yes