Software Alternatives, Accelerators & Startups


Symphony transforms the way users communicate effectively and securely with a single workflow application.

Symphony Alternatives

The best Symphony alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives Latest update:

  1. 15

    Mattermost is an open source alternative to Slack.

    Open Source

  2. 11

    Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

    Open Source

  3. VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

    Try for free paid Free Trial $4.99 / Monthly (User)

    Try for free
  4. 10

    Cisco Jabber lets you access presence, instant messaging (IM), voice, video, voice messaging, desktop sharing, and conferencing.

  5. 10

    A messaging app for teams who see through the Earth!

  6. 11

    Chat & inbox for teams. One place to talk and stay up-to-date.

  7. OriginPHP is an open-source MVC framework that enables PHP developers to quickly build high performance and scalable web applications.

  8. Facebook Messenger is a faster way to message.

  9. Secure messaging, video, calls and sharing for individuals, teams and enterprises

  10. A PHP Framework For Web Artisans

    Open Source

  11. Orchestrate revenue growth and overcome telecom billing challenges with the Symphony suite of products, prem-based or in the cloud.

  12. A faster way for your team to communicate

  13. The Cvent Supplier Network (CSN) is the world's largest directory of event venues.

  14. Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

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