Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I made an Outlook add-in that warns when emailing the wrong person launched in 2022; newer entries below may have overtaken it.

1. 1
   Seer▲98

   Making emails actionable.

   2014 · getseer.com · its alternatives →

2. 2SI
   See if someone reads your emails▲6

   2011 · gotcha.io · its alternatives →

3. 3FM
   Flute – my attempt at a better email API▲40

   2018 · flutemail.com · its alternatives →

4. 4IM
   I made a tool that helps you create email signatures and share to team▲7

   2021 · mailswype.io · its alternatives →

5. 5
   Codebreaker - 1: Email▲69

   Is email evil?

   2015 · marketplace.org · its alternatives →

6. 6IM
   I made a privacy-first email analytics software▲6

   2018 · mailspice.com · its alternatives →

7. 7
   Helo▲103

   An independent email API from former Postmark folks

   23d ago · helohq.com · its alternatives →

8. 8EC
   EmailFlow – Collaborative email review and approval add-in for Outlook▲8

   2021 · emailflow.app · its alternatives →

9. 9HE
   HNMention: Email notification when someone mentions you on Hacker News▲5

   2013 · hnmention.com · its alternatives →

10. 10
    I was tired of writing HTML emails so I built something that works▲10

    Hey HN, I was tired of writing HTML emails and one day was going through reddit specifically searching for people who hated writing HTML emails and heard a lot of complaints from solopreneurs and marketers as this is a very boring task and many marketers and solo founders have much more important tasks to take care off. So I decided to build HTML email to solve this. My friends have already saved hours using this product. This is my 11th product and I think this solves a problem many folks are struggling with. Feel free to share your views.

    2024 · html-email.com · its alternatives →

11. 11
    Review My Emails (Alpha)▲9

    List cleaning that improves deliverability.

    2025 · reviewmyemails.com · its alternatives →

12. 12CE
    Capture emails with 5 lines of code▲8

    Capturing emails always sucked. I don't want to add a full-blown newsletter API. That's why I've created my own tool. Would love your feedback on this

    2024 · mailee.dev · its alternatives →

13. 13IM
    I made an app to email daily newsletters using your own AI prompt▲5

    2024 · onbloom.app · its alternatives →

14. 14TM
    The MCP Client for Outlook▲8

    2025 · mail.synia.tech · its alternatives →

15. 15ZH
    ZenMail – Hey for Gmail (an email screener)▲7

    2020 · zenmail.shapea.com · its alternatives →

16. 16AC
    A contact form that prunes spam▲8

    2021 · powreach.com · its alternatives →

17. 17EM
    EmailDigest.me take control of your email notifications▲5

    2011 · emaildigest.me · its alternatives →

18. 18FA
    Flawless - a Python framework for reporting exceptions via email▲5

    2013 · shopkick.github.com · its alternatives →

19. 19
    Free Email Tracker for Gmail▲7

    2017 · chrome.google.com · its alternatives →

20. 20
    Ivelope▲7

    making email better

    2018 · ivelope.com · its alternatives →

21. 21PO
    ParseMail.org – A tool for email admins▲8

    2015 · parsemail.org · its alternatives →

22. 22
    Tout▲8

    Better email for sales people.

    2014 · its alternatives →

23. 23IM
    I made an app for unattended one off task notifications▲6

    2016 · binnotify.com · its alternatives →

24. 24
    Undo Send by Gmail▲3

    Don't get embarrassed if you sent the wrong mail ever again.

    2015 · workspaceupdates.googleblog.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 →