Growth · alternatives · 2026

24 alternatives to Stampery for Gmail

Gmail + Blockchain = 1-Click Agreements & Certified Tracking

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Stampery for Gmail launched in 2016; newer entries below may have overtaken it.

1. 1
   Stampery▲118

   Certify your emails using the blockchain

   2015 · stampery.com · its alternatives →

2. 2
   Blockchain + Gmail = 1-Click Agreements and Certified Tracking▲6

   2016 · chrome.google.com · its alternatives →

3. 3
   Stampd▲68

   A document blockchain stamping service

   2015 · stampd.io · its alternatives →

4. 4
   Sortd for Gmail▲556

   Trello for Gmail - Transform your email into organized lists

   2015 · sortd.com · its alternatives →

5. 5
   GMass▲203

   A beautiful mass email system for Gmail

   2015 · gmass.co · its alternatives →

6. 6
   MailClark▲198

   The Slack bot for external communications

   2016 · its alternatives →

7. 7AP
   A personal Gmail▲127

   Hey guys, so I've been building my own Gmail for the past few weeks and would like your feedback. Find a preview here: http://i.imgur.com/UDz2y.png (Mouse cursor is over the "REPLY" button, to show the hover-effect) The app you see in the screenshot is what I've been using in the past week and it starts to feel better than the gmail interface. Just a quick explanation: - It's conversation-based like Gmail. - Conversations with new emails are on the left. - Conversations may be labeled ... based on predefined filters or manually. - Every conversation stays in the left sidebar until marked…

   2012 · i.imgur.com · its alternatives →

8. 8
   Mailtrack.io▲284

   The best email tracking solution I've found. Free

   2014 · mailsuite.com · its alternatives →

9. 9
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

10. 10
    Gmail Offline▲144

    Use Gmail offline, freaking fast

    2014 · chromewebstore.google.com · its alternatives →

11. 11
    Yesware Mobile▲107

    Email Tracking in Gmail for Sales Productivity

    2014 · apps.apple.com · its alternatives →

12. 12
    Stampery for iOS▲104

    Certify voice notes, photos or files using the Blockchain

    2015 · apps.apple.com · its alternatives →

13. 13
    You've Got Gmail▲109

    Old school AOL "you've got mail" sound for Gmail

    2015 · chromewebstore.google.com · its alternatives →

14. 14
    SignEasy for Gmail▲241

    Sign, fill out & send documents without leaving Gmail

    2015 · getsigneasy.com · its alternatives →

15. 15
    Stamplia▲80

    Email templates marketplace

    2014 · unstoppable.ai · its alternatives →

16. 16
    Gmail stars and labels▲25

    easily mark certain messages as important

    2014 · support.google.com · its alternatives →

17. 17
    Unreplied▲152

    Smart Gmail label for emails you're waiting a reply to

    2014 · its alternatives →

18. 18
    TxHash Blockchain as a Service▲120

    Cryptocurrency and smart contract event notifications

    2018 · its alternatives →

19. 19
    FindBigMail▲75

    Find and label big emails to free up Gmail storage

    2015 · findbigmail.com · its alternatives →

20. 20
    TimeSeal▲116

    Restoring digital trust, one blockchain timestamp at a time

    2023 · timeseal.com · its alternatives →

21. 21
    Gmailify▲139

    The power of Gmail for everyone else's email

    2016 · blog.google · its alternatives →

22. 22
    Streak for Mobile▲146

    The CRM for Gmail

    2017 · streak.com · its alternatives →

23. 23
    typeless▲89

    Gmail shared contacts, done right

    2014 · typeless.co · its alternatives →

24. 24
    Gmail Mail Merge▲122

    Send personalized emails with attachments

    2017 · chromewebstore.google.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 →