Alternatives to Threadsy for all platforms with any license




Web / Online


Indie / Classic

  • Zimbra Desktop icon

    Zimbra Desktop

    The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having them locally accessible when on the road. Zimbra...

    Free Personal Mac Windows Linux

    No features added Add a feature
  • iRedMail icon


    A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support. Easy, fast deployment in LESS THAN 1 MINUTE. View...

    Open Source Linux BSD Self-Hosted

    No features added Add a feature
  • Cue icon


    Searches your online stuff on Facebook, Twitter, Google Docs etc. Cue helps you get the most out of your day. Featured in, USATODAY, Bloomberg Businessweek, and MIT Tech Review. With Cue, you can spend more time enjoying...

    Freemium Web / Cloud iPhone

    No features added Add a feature
    • Discontinued Reference: cue Homepage
  • Unified Inbox icon

    Unified Inbox

    Unified Inbox is a cloud based unified communication & social collaboration platform that centralizes external conversations, social engagement and internal team collaboration into one single experience across desktop and mobile...

    Freemium Web / Cloud

    No features added Add a feature
  • Fuser icon


    The Fuser Chrome Extension makes checking and taking action on your new email and social updates. Give Fuser access to your email and social networking accounts, and the website will organize all of the messages from those accounts...

    Free Mac Windows Linux Chrome

  • Boxbe icon


    Boxbe is a web-app that may know its users better than they know themselves. By tracking the emails that its users send and receive on a daily basis, Boxbe can effectively screen messages in a way that is both intelligent and...

    Free Web / Cloud

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