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. Swarm Intro – get cash by making email intros launched in 2016; newer entries below may have overtaken it.

1. 1
   Swarm▲73

   Cryptoequity crowdfunding platform

   2014 · swarmcorp.com · its alternatives →

2. 2
   Introbot▲159

   Connect people easily with simple emails intros

   2015 · its alternatives →

3. 3A1
   After 10 years my side project has hit $8k/mo in revenue▲442

   Back in 2010 I had an idea for a service that would allow people to easily create semi-permanent email aliases so that they could give an email address to people and websites without revealing their real email address. These aliases will continue to work indefinitely unless you choose to block them. My brother and I spent a few months building the initial version and launched the website in July 2010. For the first year we had about 50 signups per month, by 2013 this had increased to 1500 and it's currently around 3500 per month. Similarly, our revenue grew consistently but slowly - doubling…

   2020 · its alternatives →

4. 4
   Bounce.io▲100

   Turning bounced emails into a revenue channel

   2014 · its alternatives →

5. 5
   I built an email marketing tool made for indie hackers and solopreneurs▲109

   Send transactional emails, run marketing campaigns, and automate workflows. Open-source and self-hostable, $0.001 per email, no contact limits.

   2022 · useplunk.com · its alternatives →

6. 6
   Hack To Start #89 - Matthew Hartman▲96

   Director of Seed Investments, Betaworks

   2016 · soundcloud.com · its alternatives →

7. 7
   Create If Writing: Monetizing Your Email List▲54

   Tips and advice for selling without Smarm

   2016 · traffic.libsyn.com · its alternatives →

8. 8
   Better BCC'd▲113

   Make replying to intro emails super simple.

   2014 · chromewebstore.google.com · its alternatives →

9. 9
   Bitbounce-Credo▲88

   A cryptocurrency spam solution

   2017 · its alternatives →

10. 10
    Tiny Bank Beta▲127

    An inbox for your money

    2016 · tinybank.co · its alternatives →

11. 11
    EmailDyno▲114

    Instantly Turn Your Email List Into A Profit Machine

    2015 · its alternatives →

12. 12
    Embarke▲62

    Optimize email campaigns for revenue

    2014 · its alternatives →

13. 13
    Crewnity▲80

    Organically grow your email list

    2023 · its alternatives →

14. 14
    Composed▲66

    A tollbooth for your inbox. Make money answering emails.

    2015 · getcomposed.com · its alternatives →

15. 15
    Guide to Creating an Automated Email Drip Campaign▲64

    Customer onboarding can be overwhelming.

    2016 · app.gumroad.com · its alternatives →

16. 16
    Altpocket - BETA▲74

    Social gamification of your crypto portfolio

    2017 · its alternatives →

17. 17
    Teller▲81

    New "psychic" email inbox (pre-launch)

    2014 · tellerapp.com · its alternatives →

18. 18
    Follow[the]Seed VC▲77

    A new algorithm for Investors to detect unicorns early

    2017 · followtheseed.vc · its alternatives →

19. 19
    Find Your Niche Challenge▲34

    Find customers who’ll be happy to pay for your indie app

    2023 · growthlab.so · its alternatives →

20. 20
    Swarm Challenges▲19

    Check in, win prizes!

    2016 · support.foursquare.com · its alternatives →

21. 21LM
    LeanScribe – Mass email potential customers for cheap▲5

    2014 · leanscribe.com · its alternatives →

22. 22II
    IntroJoy (Introduce two people via email without the hassle)▲8

    2018 · introjoy.com · its alternatives →

23. 23
    Bitcoin For Beginners by CryptoLetter▲24

    A free 7-day email course

    2017 · its alternatives →

24. 24KH
    Knowtify Hackday – Email Digest for Early Stage Investors▲6

    2014 · knowtify.io · 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 →