Life & fun · alternatives · 2026

24 alternatives to Inboxcube

The Future of Email.

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

1. 1
   Inbox▲175

   Next-generation email platform (pre-launch)

   2014 · its alternatives →

2. 2
   Mailcloud▲110

   A New Way to Email

   2014 · its alternatives →

3. 3
   Happy Inbox▲116

   Discover great newsletters!

   2014 · its alternatives →

4. 4WS
   WildDuck – Self-hosted modern email server▲222

   2019 · wildduck.email · its alternatives →

5. 5
   Pingly▲86

   A new messaging platform working to evolve email

   2014 · its alternatives →

6. 6
   BirdLeaf▲73

   Turn email addresses into insights.

   2015 · its alternatives →

7. 7
   BombBomb▲77

   Video E-mail Creation and Analytics Tool

   2014 · its alternatives →

8. 8
   Turing Email▲112

   Making checking your inbox as fun as using Slack

   2015 · its alternatives →

9. 9
   Boxer▲73

   The first open platform for mobile email

   2014 · its alternatives →

10. 10
    MailClark▲198

    The Slack bot for external communications

    2016 · its alternatives →

11. 11
    Seer▲98

    Making emails actionable.

    2014 · its alternatives →

12. 12
    OpenSource Email Template▲109

    Responsive, Free, and Community Driven

    2014 · its alternatives →

13. 13
    Smartbox by Inbox▲117

    The mailbox of tomorrow, today

    2015 · its alternatives →

14. 14
    mlist 2.0▲116

    Email newsletters, outside of the inbox

    2015 · its alternatives →

15. 15
    MailMentor▲162

    A data driven approach to writing better email

    2015 · its alternatives →

16. 16
    Boxer for Android▲75

    "Faster, smarter mobile email app" now on Android

    2014 · its alternatives →

17. 17
    Iterable▲94

    Smarter email marketing

    2014 · its alternatives →

18. 18
    Shortwhale▲85

    Stop drowning in email

    2014 · its alternatives →

19. 19
    5IT▲88

    5 intriguing things, delivered daily via email

    2015 · its alternatives →

20. 20
    Planleaf▲97

    Task management with email

    2014 · its alternatives →

21. 21
    Teller▲81

    New "psychic" email inbox (pre-launch)

    2014 · its alternatives →

22. 22
    Other Inbox▲87

    App store for email

    2014 · its alternatives →

23. 23
    Boomerang for Gmail▲47

    Never let a thread die, never forget a follow up

    2014 · its alternatives →

24. 24
    Inbox Pause by Boomerang▲99

    Batch your email. Get more done.

    2017 · 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 →