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  1. Hitask is the project planner for getting tasks done. Assign, prioritize, and remind tasks to your team with lists. Check progress of each project on the go and see what your organization is working at.
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad
    • Self-Hosted
    • Microsoft Office Outlook
    • S/MIME
    • Software as a Service (SaaS)
    Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.


  2. eXo Platform is an all-in-one digital workplace solution that helps you connect, align and engage your teams around a single interface. You can use it to improve company and peer-to-peer communication, boost collaboration and manage company knowledge.
  3. Calendar, part of Office Online , is a time-management web application by Microsoft.
  4. Zebu is a secure and encrypted way to collaborate in the workplace. The Zebu platform is created with complete security encryption that will allow your business to simplify their work while protecting internal communication, storage, and scheduling.
  5. Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).
  6. Unlike other calendar programs, Teamup does not require any user account. No signup, no login. Access to Teamup Calendar is as simple as opening a calendar link in your web browser. The calendar links can be shared with as many users as needed.
  7. IceWarp integrates all communication & collaboration features in one unified solution. Available in cloud or for on-premises deployment, IceWarp is a great tool to share and exchange all information and ideas online, offline or via mobile devices.
  8. Crugo is a simple group collaboration platform for your team.
  9. Wiggio is an online toolkit that makes it easy to work in groups. With Wiggio you can:

    Discontinued

    Wiggio has been officially closed

  10. GeneralSync provides shared calendars and address books that can be accessed from Thunderbird, Outlook and most Android apps – without storing anything in the cloud or on servers.
  11. Greg is a privacy-friendly, simple and powerful calendar app made by perfectionists for perfectionists.
  12. Zoho Calendar is a free online calendar application that helps you to track your appointments and meeting schedule, send invitation and track RSVP's, share and publicize your calendars. You can also access your Zoho Calendar from mobile phone by syncing it using Zoho CalSync.
  13. Noodle is the social intranet software that improves communication, enhances collaboration, and encourages innovation in the enterprise. It brings microblogging, wikis, document sharing, instant messaging and other social business tools in a single portal.