Alternatives to Unibox for all platforms with any license

  • Inbox by Gmail icon

    Inbox by Gmail

    Built on everything that we've learned from Gmail, Inbox is a fresh start that goes beyond email to help you get back to what...

    Free Web / Cloud Android iPhone Chrome OS iPad Chrome

  • Apple Mail icon

    Apple Mail

    There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.

    Free Mac iPhone iPad

  • Postbox icon


    Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity...

    Commercial Mac Windows

  • Airmail icon


    Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi...

    Commercial Mac iPhone iPad Apple Watch

  • Inky icon


    End-to-End Encrypted Email that is a Delight to Use, on all devices, with all email accounts.

    Commercial Mac Windows Android iPhone Android Tablet iPad

  • Sparrow icon

    Sparrow Discontinued

    Sparrow is a minimalist mail application for Mac. It was designed to keep things simple and efficient. No fancy stuff here... just...

    Commercial Mac iPhone

  • Polymail icon


    The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

    Free Mac iPhone iPad

  • Spark icon


    E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various...

    Free iPhone iPad Apple Watch

  • ALTO Mail icon

    ALTO Mail

    Alto Mail makes managing your email easy again. Add all your mail accounts to our app (including Gmail, Outlook, Yahoo!, AOL Mail...

    Free Web / Cloud Android iPhone Android Tablet iPad

  • Boxer icon


    Boxer is a faster, smarter, secure email app that supports your Gmail, Exchange, Outlook, Yahoo, Hotmail, iCloud, Office 365, IMAP...

    Freemium Android iPhone Android Tablet iPad

  • TypeApp icon


    TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various...

    Free Personal Android iPhone Android Tablet iPad Android Wear Kindle Fire

  • Kiwi for Gmail icon

    Kiwi for Gmail

    Kiwi for Gmail (formerly Gmail for Mac) turns Gmail into a full-powered desktop email client. No one wants to use Gmail in the browser...

    Freemium Mac

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  • myMail icon


    myMail is the smart email app for managing all your accounts on iOS and Android. Use myMail to manage messages in your Gmail...

    Free Android iPhone Android Tablet iPad Apple Watch

  • SlideMail icon


    Making email better through artificial intelligence.

    Free iPhone

  • Canary Mail icon

    Canary Mail

    Canary is an exciting new email client for Mac that's fast, simple, and secure.

    Free Mac iPhone

  • .Mail icon

    .Mail Discontinued

    Email client with standard functionalities plus - easy to use actionsteps - centralized attachments - integrated notification

    Free Mac

  • MailTab for Gmail icon

    MailTab for Gmail

    MailTab for Gmail is the ideal app for instantly accessing your Gmail account without having to open your web browser. Download it for...

    Freemium Mac

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  • Mia for Gmail icon

    Mia for Gmail

    Mia is a native Gmail application on your Mac's menu bar! Read and compose your emails without a browser (attachment files...

    Freemium Mac

  • Mailplane icon


    You like threaded conversations, googling your inbox, and you prefer labels over folders. You really love Gmail. If yes: You've...

    Commercial Mac

  • PersonaMail icon


    Persona is an email client that was designed to change the perception and experience of sending and receiving emails.

    Free Mac

  • MailPop for Gmail icon

    MailPop for Gmail Discontinued

    We love Gmail as much as you do. That's why we created MailPop for Gmail. It's the simplest, most fluid way to access your...

    Freemium Mac

  • MailBar icon


    MailBar is a practical Mac OS X application that enables you to check your Inbox and manage your emails directly from your Mac’s menu...

    Commercial Mac

  • Maestro icon


    Maestro is a better mail client for Windows Phone. With unique features like account themes, gestures, and favorites, Maestro helps...

    Commercial Windows Phone

  • MetroMail icon

    MetroMail Discontinued

    MetroMail brings a first-class Gmail experience to Windows and Windows Phone. With support for Gmail-specific features such as...

    Freemium Windows Windows RT Windows Phone

  • Mailburn icon


    Mailburn is an iPhone email client that shows your conversations with real people as chats, without "Show quoted text" and...

    Freemium iPhone iPad

Unibox Comments

Missing alternatives

Comment by pacorob
about Unibox Feb 2016

Spark, Outlook and Polymail should definitely be added to the list of alternatives.

[Edited by pacorob, February 29]