Life & fun · alternatives · 2026

24 alternatives to SlideMail

What if your email app could think?

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. SlideMail launched in 2015; newer entries below may have overtaken it.

1. 1
   SlideMail▲97

   An email app that can think

   2015 · its alternatives →

2. 2
   Let.ter▲115

   The tiny email app just for writing emails

   2014 · theletterapp.com · its alternatives →

3. 3
   Litmus▲100

   Test and track your emails.

   2014 · litmus.com · its alternatives →

4. 4
   Other Inbox▲87

   App store for email

   2014 · its alternatives →

5. 5
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

6. 6
   Litmus▲45

   Test and track your emails

   2014 · litmus.com · its alternatives →

7. 7
   Seer▲98

   Making emails actionable.

   2014 · getseer.com · its alternatives →

8. 8
   My.com Mail▲74

   Mail App + [email protected]

   2014 · mymail.my.com · its alternatives →

9. 9
   Email Insights▲154

   See and track your competitors' email

   2014 · its alternatives →

10. 10
    Inky▲71

    An app for all your email

    2013 · inky.com · its alternatives →

11. 11
    Boxer for Android▲75

    "Faster, smarter mobile email app" now on Android

    2014 · play.google.com · its alternatives →

12. 12
    Shortwhale▲85

    Stop drowning in email

    2014 · its alternatives →

13. 13
    CloudMagic▲79

    The mail app with magical search

    2013 · cloudmagic.com · its alternatives →

14. 14
    AppMail▲68

    The ultimate e-mail platform for developers

    2016 · appmail.io · its alternatives →

15. 15
    Email 1K▲190

    Double Your Email List

    2014 · email1k.com · its alternatives →

16. 16
    Dev Ideas▲86

    An email newsletter for dev project ideas.

    2014 · devideas.github.io · its alternatives →

17. 17
    Future Me▲105

    Send an email to your future self

    2014 · futureme.org · its alternatives →

18. 18
    Banana Tag▲73

    See what happens to your emails after you press send

    2014 · its alternatives →

19. 19
    Planleaf▲97

    Task management with email

    2014 · planleaf.com · its alternatives →

20. 20
    Inbox▲175

    Next-generation email platform (pre-launch)

    2014 · inboxapp.com · its alternatives →

21. 21
    Acompli▲28

    Better mobile email

    2014 · its alternatives →

22. 22
    Cannonball▲76

    Fall in love with email again

    2015 · cannonball.io · its alternatives →

23. 23
    Stratechery▲83

    Daily email analysis on tech biz and strategy

    2015 · stratechery.com · its alternatives →

24. 24
    Happy Grasshopper▲81

    Follow-up emails as a service

    2014 · happygrasshopper.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 →