Life & fun · alternatives · 2026

24 alternatives to EmailPK

Instant encrypted email

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

1. 1EI
   EmailPK – Instant encrypted email▲53

   2014 · diafygi.github.io · its alternatives →

2. 2
   ProtonMail▲144

   Encrypted email, made simple. Now open to everybody.

   2015 · proton.me · its alternatives →

3. 3
   Inky 3▲160

   Send encrypted emails using your current email provider

   2016 · inky.com · its alternatives →

4. 4
   Criptext▲83

   Encrypt, track, and recall your emails

   2015 · its alternatives →

5. 5
   Hop Encrypted Email▲132

   Completely private chat email, w/ encrypted email messaging

   2017 · spikenow.com · its alternatives →

6. 6
   M for iOS▲126

   Email app with automatic encryption

   2015 · mynigma.org · its alternatives →

7. 7
   Jumble▲88

   E-mail encryption plugin for Chrome

   2014 · its alternatives →

8. 8
   Just Mail▲64

   Secured email platform based on distributed storage network

   2014 · its alternatives →

9. 9
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

10. 10
    Jumble for Gmail▲21

    Encrypt emails (for free) using your existing Gmail account

    2015 · chromewebstore.google.com · its alternatives →

11. 11
    Dark Mail▲62

    Truly Encrypted Email That Even Encrypts the Metadata

    2014 · its alternatives →

12. 12
    Leak▲151

    Just say it. Send an anonymous email.

    2014 · its alternatives →

13. 13
    Confidential CC▲94

    Send self-destructing email without leaving a trace

    2015 · confidentialcc.com · its alternatives →

14. 14
    ProtonMail▲199

    End-to-end encrypted email - now on iOS & Android

    2016 · proton.me · its alternatives →

15. 15EE
    Easy Email Encryption inside Gmail (Alpha, Open-Source)▲170

    Manage sales and customer relationships directly inside Gmail. Streak is the CRM your team will actually use—integrated, smart, and loved by 750,000+ users.

    2013 · streak.com · its alternatives →

16. 16
    Email 1K▲190

    Double Your Email List

    2014 · email1k.com · its alternatives →

17. 17
    Let's Encrypt▲26

    A new Certificate Authority - free, automated, and open.

    2015 · letsencrypt.org · its alternatives →

18. 18
    Seer▲98

    Making emails actionable.

    2014 · getseer.com · its alternatives →

19. 19
    ShadowCrypt▲65

    Encrypts e-mails, Facebook status updates, tweets (Chrome)

    2014 · shadowcrypt-release.weebly.com · its alternatives →

20. 20
    MeSign app▲63

    Automated end-to-end encrypted email client

    2020 · its alternatives →

21. 21
    Let.ter▲115

    The tiny email app just for writing emails

    2014 · theletterapp.com · its alternatives →

22. 22
    MailPile▲75

    A fast, responsive open source email client

    2014 · mailpile.is · its alternatives →

23. 23
    Fake Mail Generator▲107

    An absolutely free disposable email system

    2014 · fakemailgenerator.com · its alternatives →

24. 24
    Chadder▲89

    Encrypted messaging app

    2015 · emojiguide.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 →