Alternatives to Inbox2 for all platforms with any license

  • Thunderbird icon

    Thunderbird

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after...

    Open Source Mac Windows Linux BSD Haiku

  • 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 iPad Chrome

  • K-9 Mail icon

    K-9 Mail

    K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration...

    Open Source Android Android Tablet

  • Mailbird icon

    Mailbird

    The Best Email Client for Windows 7, 8 & 10 - Mailbird is more than just another email client. It's an all-in-one...

    Freemium Windows

  • Evolution icon

    Evolution

    Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail...

    Open Source Linux BSD GNOME

  • eM client icon

    eM client

    Fully functional alternative to Microsoft Outlook, including native interoperability with Exchange servers.

    Freemium Windows

  • Geary icon

    Geary Discontinued

    Geary is a lightweight email program designed around conversations and built for the GNOME...

    Open Source Linux BSD GNOME

  • Claws Mail icon

    Claws Mail

    Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated...

    Open Source Windows Linux Xfce

  • Airmail icon

    Airmail

    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

  • 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

  • Inky icon

    Inky

    Inky pulls together all your personal and work email accounts into one place. By providing simple tools to manage your inbox, Inky...

    Commercial Mac Windows Android iPhone Android Tablet iPad

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  • Mailbox icon

    Mailbox Discontinued

    Mailbox is a completely redesigned inbox that makes email light, fast, and mobile-friendly. Quickly swipe messages to your archive or...

    Free Mac Android iPhone iPad

  • 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...

    Free Personal Mac Windows Linux

  • Windows Live Mail icon

    Windows Live Mail

    Windows Live Mail (formerly named Windows Live Mail Desktop) is a freeware email client from Microsoft. It is the successor to Outlook...

    Free Windows

  • Mail Wise icon

    Mail Wise

    Mail Wise – Read Just What You Need. The best conversation threads ever. A free email client that transforms messy emails into clean...

    Freemium Android

  • Trojitá icon

    Trojitá

    Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values...

    Open Source Windows Linux

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  • Kontact icon

    Kontact

    Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under...

    Open Source Windows Linux

  • Mail icon

    Mail

    With the Mail application for Windows 8.1 you can now easily see all message from your favorite people, more clearly organize social...

    Free Windows RT

  • Spark E-mail icon

    Spark E-mail

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

    Free iPhone iPad

  • Kontact - KMail icon

    Kontact - KMail

    KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager...

    Open Source Mac Windows Linux BSD

  • Mail Pilot icon

    Mail Pilot

    Experience intuitive email with a simple, task-oriented approach. Quickly manage and productively organize your Inbox with Mail Pilot...

    Commercial Mac iPhone iPad

  • nPOPuk icon

    nPOPuk

    nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of Windows-based operating systems

    Free Windows Windows Mobile

  • iRedMail icon

    iRedMail

    A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD...

    Open Source Linux BSD Self-Hosted

  • Type Mail icon

    Type Mail

    was called blue mail. great multiprotocol client. my favourite (tried a few (including K9), forgot them all). here...

    Free Android Android Tablet

  • Columba icon

    Columba Discontinued

    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization...

    Open Source Mac Windows Linux BSD

  • Evomail icon

    Evomail Discontinued

    Email is stale. We’re driving email forward through innovation across all mail clients and server implementations -- with or without...

    Free iPhone iPad

  • EmailTray icon

    EmailTray

    EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and...

    Free Windows Android

  • IncrediMail icon

    IncrediMail Warning

    Advertising-supported email client for the Microsoft Windows operating system by IncrediMail Ltd. that offers the ability to add...

    Free Personal Windows

  • Mailburn icon

    Mailburn

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

    Free iPhone iPad

  • Unified Inbox icon

    Unified Inbox

    Unified Inbox is a cloud based unified communication & social collaboration platform that centralizes external conversations...

    Freemium Web / Cloud

  • SlideMail icon

    SlideMail

    Making email better through artificial intelligence.

    Free iPhone

  • Koma-Mail icon

    Koma-Mail Discontinued

    Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run...

    Free Windows