Unibox AlternativesOnly apps categorised as Email Clients - Page 2

The best Email Client alternative to Unibox is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Unibox and many of them are Email Clients so hopefully you can find a suitable replacement. Other interesting Email Client alternatives to Unibox are Spark Mail, Notion Mail, Apple Mail and Mailbird.

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Unibox alternatives are mainly Email Clients but may also be Calendar Apps or AI Writing Tools.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Unibox.
Unibox iconUnibox
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Unibox is a people centric email client that organizes your messages by person. It avoids having email like a to-do list.

More about Unibox
More about Unibox
Unibox alternatives page was last updated Jan 3, 2025
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Alternatives
  1. TypeApp icon

    TypeApp

     30 likes
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    TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.

    59 TypeApp alternatives

    License model

    • Free Personal • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Android Wear
    • Kindle Fire
    TypeApp screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Unified inbox
    2.  Email Organizer
    3.  Multiple Account support
    4.  Live Push Notifications
    5.  Exchange

    TypeApp VS Unibox

     
  2. Kiwi for Gmail icon

    Kiwi for Gmail

     14 likes
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    Dedicated Gmail client with clean integration of Google Calendar, Contacts, Google Drive, and Google Docs, Sheets, and Slides.

    16 Kiwi for Gmail alternatives

    License model

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    Kiwi for Gmail screenshot 1

    Kiwi for Gmail Features

    1.  Multiple Account support
    2.  Gmail
    3.  GSuite Integration

    Kiwi for Gmail VS Unibox

     
  4. Polymail icon

    Polymail

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

    78 Polymail alternatives

    License model

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • iPhone
    • iPad
    Polymail screenshot 1
    Polymail screenshot 2
    Polymail screenshot 3

    Polymail Features

    1.  Email Scheduling
    2.  Multiple Account support
    3.  IMAP Support
    4.  Sync Contacts
    5.  Email tracking

    Polymail VS Unibox

     
  5. Ad
    Screenshot
    Notion Mail icon
    Notion Mail

    An intelligent, personalized inbox that automates tasks and enhances productivity. Features include views that prioritize what's important, AI-driven scheduling, snippets for quick responses, and seamless integration with Not...

    https://www.notion.so
    Learn More
  6. Twobird icon

    Twobird

     5 likes
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    Welcome to Twobird, a new kind of email app that includes all your everyday tools. Write emails, create notes, set reminders and assign to-dos — all in your inbox.

    8 Twobird alternatives

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Twobird screenshot 1

    Twobird VS Unibox

     
  7. Mia for Gmail icon

    Mia for Gmail

     5 likes
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    A desktop email client for your Mac, without a browser !.

    29 Mia for Gmail alternatives

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Mac
    Mia for Gmail screenshot 1

    Mia for Gmail Features

    1.  Multiple Account support
    2.  Sits in the MenuBar

    Mia for Gmail VS Unibox

     
  8. SlideMail icon

    SlideMail

     6 likes
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    Making email better through artificial intelligence.

    43 SlideMail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • iPhone
    SlideMail screenshot 1
    SlideMail screenshot 2
    SlideMail screenshot 3

    SlideMail Features

    1.  Multiple Account support
    2.  Gmail
    3.  Personal Information Manager (PIM)
    4.  Synchronization
    5.  Exchange
    6.  Assistant

    SlideMail VS Unibox

     
  10. WunderMail icon

    WunderMail

     2 likes
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    The missing native desktop client for Gmail on Windows 10.

    64 WunderMail alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Windows
    • Gmail
    WunderMail screenshot 1
    Discontinued

    Development seems to have stopped. The latest version on the Windows Store is from 2018.

    WunderMail Features

    1.  Gmail
    2. Gmail icon  Gmail integration

    WunderMail VS Unibox

     
  11. Express Mail icon

    Express Mail

     1 like
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    Best mobile email app for Salespeople.

    6 Express Mail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • iPhone
    • iPad
    Express Mail screenshot 1
    Express Mail screenshot 2
    Express Mail screenshot 3

    Express Mail VS Unibox

     
  12. ChatInbox icon

    ChatInbox

     1 like
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    Group emails by sender, and more!.

    2 ChatInbox alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • iPhone
    ChatInbox screenshot 1
    ChatInbox screenshot 2
    ChatInbox screenshot 3

    ChatInbox Features

    1.  Works Offline
    2.  Calendar View
    3.  Multiple Account support
    4.  Support for Aliases
    5.  Dark Mode
    6.  Unified inbox
    7.  Cloud Sync
    8.  Email Organizer
    9.  Ad-free

    ChatInbox VS Unibox

     
  13. Mailsmith icon

    Mailsmith

     Like
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    A standards-based email client.

    50 Mailsmith alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    Discontinued

    Project is discontinued. No more updates or bugfixes.

    Mailsmith VS Unibox

     
  14. Xylo AI icon

    Xylo AI

     Like
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    Experience seamless communication with Xylo AI email assistant, the ultimate tool powered by cutting-edge Generative AI and Social Psychology.

    59 Xylo AI alternatives

    License model

    Application types

    Platforms

    • Online
    • Microsoft Outlook
    • Windows
    • Software as a Service (SaaS)
    Xylo AI screenshot 1

    Properties

    1.  Lightweight
    2.  Distraction-free
    3.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  Extensible by Plugins/Extensions
    3.  No Tracking
    4.  Ad-free
    5.  Calendar Integration
    6.  No Coding Required
    7.  Marketing Automation
    8.  Autocompletion
    9.  Spell Checking
    10.  Mail Filtering
    11.  Cloud Sync
    12.  AI-Powered

    Xylo AI VS Unibox

     
  15. Mail for Gmail icon

    Mail for Gmail

     Like
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    Enjoy all the advantages of accessing your Gmail account, separate from your browser:

    13 Mail for Gmail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • HU flagHungary
    • European Union flagEU

    Platforms

    • Mac
    Mail for Gmail screenshot 1

    Mail for Gmail VS Unibox

     
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