Work · alternatives · 2026

24 alternatives to Unibox

People-centric email client

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Unibox launched in 2014; newer entries below may have overtaken it.

1. 1
   Unibox for iOS▲101

   Your emails organized by person

   2015 · uniboxapp.com · its alternatives →

2. 2
   Unibox, the people-centric email client released on the Mac App Store▲25

   Find emails, conversations and attachments under each contact. Unibox brings your existing email accounts together on Mac, iPhone and iPad.

   2013 · uniboxapp.com · its alternatives →

3. 3
   UnInbox▲877

   Open source modern email for teams and professionals

   2024 · uninbox.com · its alternatives →

4. 4
   Unhoard 2.0▲95

   Rediscover things from the services you love

   2017 · its alternatives →

5. 5
   OpenSource Email Template▲109

   Responsive, Free, and Community Driven

   2014 · dyspatch.io · its alternatives →

6. 6
   Boxer▲73

   The first open platform for mobile email

   2014 · omnissa.com · its alternatives →

7. 7
   MailPile▲75

   A fast, responsive open source email client

   2014 · mailpile.is · its alternatives →

8. 8
   Uforio▲135

   An alternative reddit client

   2015 · uforio.com · its alternatives →

9. 9
   mlist 2.0▲116

   Email newsletters, outside of the inbox

   2015 · letterlist.com · its alternatives →

10. 10
    Mailcloud▲110

    A New Way to Email

    2014 · mailcloudapp.com · its alternatives →

11. 11
    Redkix Beta▲121

    Team messaging powered by email.

    2017 · its alternatives →

12. 12
    Missive▲132

    Collaborate right in your inbox

    2015 · missiveapp.com · its alternatives →

13. 13
    Clubble.io▲158

    Answer emails via Slack.

    2015 · divizia.org · its alternatives →

14. 14
    Gmail for Mac▲111

    Seamlessly fluid, desktop email client for Mac (Kickstarter)

    2014 · kickstarter.com · its alternatives →

15. 15
    SwiftIntro▲94

    Professional "matchmaking" done over email

    2014 · swiftintro.com · its alternatives →

16. 16
    UnInbox: Spaces & Workflows▲251

    Open source collaborative email platform to get shit done

    2024 · uninbox.com · its alternatives →

17. 17
    MailClark▲198

    The Slack bot for external communications

    2016 · its alternatives →

18. 18
    Airmail▲93

    Lightning fast mail client for OS X

    2013 · airmailapp.com · its alternatives →

19. 19
    BirdLeaf▲73

    Turn email addresses into insights.

    2015 · its alternatives →

20. 20
    Pingly▲86

    A new messaging platform working to evolve email

    2014 · its alternatives →

21. 21
    Seer▲98

    Making emails actionable.

    2014 · getseer.com · its alternatives →

22. 22
    Introbot▲159

    Connect people easily with simple emails intros

    2015 · its alternatives →

23. 23
    Switchboard▲99

    Open-source email processing built in Erlang

    2014 · its alternatives →

24. 24
    Helo▲103

    An independent email API from former Postmark folks

    21d ago · helohq.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →