OpenChange AlternativesOnly apps categorised as Calendar Apps

The best Calendar alternative to OpenChange is Nextcloud Hub, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to OpenChange and six of them are Calendar Apps so hopefully you can find a suitable replacement. Other interesting Calendar App alternatives to OpenChange are Zimbra Collaboration Suite, grommunio, SmarterMail Mail Server and OBM.

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Alternatives list

  1. Nextcloud Hub icon

    Nextcloud Hub

     22 likes
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    Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.

    51 Nextcloud Hub alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Self-Hosted
    • Nextcloud
    Nextcloud Hub screenshot 1
     

    • Nextcloud Hub is the most popular Self-Hosted alternative to OpenChange.

    • Nextcloud Hub is the most popular Open Source & free alternative to OpenChange.

    • Nextcloud Hub is Free and Open SourceOpenChange is also Free and Open Source
    • Nextcloud Hub is Privacy focusedOpenChange is not according to our users
  2. Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

     35 likes
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    Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

    45 Zimbra Collaboration Suite alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted
    Zimbra Collaboration Suite screenshot 1
     

    • Zimbra Collaboration Suite is the most popular commercial alternative to OpenChange.

    • Zimbra Collaboration Suite is Paid and ProprietaryOpenChange is Free and Open Source
  4. grommunio icon

    grommunio

     3 likes
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    grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.

    15 grommunio alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    grommunio screenshot 1
     

    • grommunio is the most popular iPad alternative to OpenChange.

    • grommunio is Freemium and Open SourceOpenChange is Free and Open Source
    • grommunio is Privacy focusedOpenChange is not according to our users
  5. SmarterMail Mail Server icon

    SmarterMail Mail Server

     4 likes
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    SmarterMail is the only other email server on the market with native support for MAPI, the protocol that powers Exchange and Outlook. That means anything you can do on Exchange you can do with SmarterMail: no plug-ins and no additional software required.

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Windows
    • Linux
    • Docker
    Audio and video conferencing for your team. Includes screen sharing, unlimited chat attendees, file sharing with previews, public or private conferences, and much more.
     
  6. OBM icon

    OBM

     4 likes
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    OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Linux
    OBM screenshot 1
     
  7. Zarafa icon

    Zarafa

     13 likes
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    Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile phone support, Outlook "Look & Feel" webaccess and stable Outlook sharing (100% MAPI).

    Cost / License

    • Paid
    • Proprietary

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
     
6 of 6 OpenChange alternatives