Life & fun · alternatives · 2026

24 alternatives to Iron Notice

End to end encryption for businesses

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Iron Notice launched in 2020; newer entries below may have overtaken it.

1. 1
   Mention▲16

   End-to-end encrypted enterprise messenger

   2025 · mention.so · its alternatives →

2. 2
   A Final Message▲7

   Your final act of love, delivered when it matters most

   2025 · afinalmessage.com · its alternatives →

3. 3
   ProtonMail▲199

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

   2016 · proton.me · its alternatives →

4. 4
   Encryptochat▲68

   True end-to-end encrypted messaging.

   2020 · play.google.com · its alternatives →

5. 5
   OnDrop▲95

   An end to end encrypted way to share files

   2022 · its alternatives →

6. 6
   CipherBoard (pre-launch)▲105

   End-to-end encryption within any app you use

   2017 · cipherboard.com · its alternatives →

7. 7EE
   Ephemere – End-to-end encrypted and ephemeral messaging▲16

   2021 · ephemere.app · its alternatives →

8. 8
   Keybase for Mobile▲159

   End-to-end encryption messaging platform

   2017 · keybase.io · its alternatives →

9. 9
   Mailvelope▲61

   End-to-end email encryption for webmail

   2021 · mailvelope.com · its alternatives →

10. 10
    Keybase Chat▲253

    End-to-end encrypted chat built into Keybase

    2017 · keybase.io · its alternatives →

11. 11
    Cipherwill▲260

    Ensure your data reaches your loved ones when you pass away

    2025 · cipherwill.com · its alternatives →

12. 12
    DataSafe – Encrypted messages via hotkey▲86

    A tiny app to quickly send encrypted messages with a hotkey

    2025 · its alternatives →

13. 13
    Signal 2.0▲140

    Send end-to-end encrypted text, picture, and video messages

    2015 · apps.apple.com · its alternatives →

14. 14
    Alert.email▲250

    Get your important emails delivered to a Slack channel

    2016 · its alternatives →

15. 15
    Serenity Notes▲151

    End-to-end encrypted collaborative notes app

    2021 · its alternatives →

16. 16
    ProtonMail▲82

    End-to-end encrypted email, based in Switzerland.

    2014 · proton.me · its alternatives →

17. 17
    Shar.ec▲125

    Share end-to-end encrypted screen recordings

    2021 · shar.ec · its alternatives →

18. 18EA
    Encrypt and Destroy – Send dead simple encrypted messages on the web▲11

    2016 · encrypt-and-destroy.herokuapp.com · its alternatives →

19. 19
    Enclosed▲143

    Send private and secure notes

    2024 · enclosed.cc · its alternatives →

20. 20
    WhatsApp end-to-end encryption▲33

    Cross platform end-to-end encryption for 1:1 & group chat 🔒

    2016 · blog.whatsapp.com · its alternatives →

21. 21CM
    Cipher – Mobile Ethereum Web3 DApp Browser▲76

    2018 · cipherbrowser.com · its alternatives →

22. 22
    AXchat▲72

    Use-to-Earn encrypted communications app

    2022 · axia.global · its alternatives →

23. 23
    End to End Encryption File Sharing▲90

    Securely share sensitive files

    2022 · comply.strac.io · its alternatives →

24. 24
    Misakey 1.0▲112

    Send encrypted documents & messages to anyone

    2020 · 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 →