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. Prime number as a service launched in 2018; newer entries below may have overtaken it.

1. 1
   Is This Prime?▲80

   Can you tell which numbers are prime?

   2016 · isthisprime.com · its alternatives →

2. 2
   digit▲7

   A really nice automatic savings service :)

   2015 · digit.co · its alternatives →

3. 3
   Square Order▲95

   Order from your phone

   2014 · squareup.com · its alternatives →

4. 4
   Invoice▲121

   A minimalist flat-file invoicing solution.

   2015 · leeflets.com · its alternatives →

5. 5AA
   Answers as a Service as a Service▲5

   2019 · askmagicseth.com · its alternatives →

6. 6
   Fit Receipt▲77

   A private fitting agent that knows when to call JEV

   Sep 2026 · nude-virtual-showroom.vercel.app · its alternatives →

7. 7
   Universal Avenue▲64

   On-demand sales as a service

   2015 · universalavenue.com · its alternatives →

8. 8
   Digit▲25

   An artificially intelligent savings account

   2014 · oportun.com · its alternatives →

9. 9
   Primeval Numbers▲25

   2024 · aravind.rs · its alternatives →

10. 10SA
    Stories as a Service▲8

    2018 · trycereals.com · its alternatives →

11. 11BA
    Baseconv: a (very) tiny number conversion utility▲5

    2016 · baseconv.ddns.net · its alternatives →

12. 12CM
    Call Me Private Virtual Number Service▲22

    2017 · callmeprivate.com · its alternatives →

13. 13
    Let's Encrypt as a Service (SSL Custom Customer Domains)▲8

    2016 · clearalias.com · its alternatives →

14. 14AS
    Auto-ship product to your customers▲5

    2012 · whiplashmerch.com · its alternatives →

15. 15SP
    Surge Pricing as a Service▲5

    2014 · surgepricing.appspot.com · its alternatives →

16. 16SP
    Senu – private, secondary phone numbers for online use▲5

    2020 · senu.app · its alternatives →

17. 17OI
    Online Invoice Maker with sales tax auto-suggestion▲6

    2018 · producthunt.com · its alternatives →

18. 18
    Prime Number Checker | Ease Tools

    Check prime numbers easily with the Prime Number Checker

    Apr 2026 · geteasetools.com · its alternatives →

19. 19LC
    Low cost IoT Data plans▲9

    2016 · iotdataplans.att.com · its alternatives →

20. 20
    Premium number Marketplace▲2

    crease call conversions with memorable Vanity Numbers

    2022 · 800.com · its alternatives →

21. 21AP
    Anonymous phone numbers paid in Bitcoin▲8

    2016 · smsprivacy.org · its alternatives →

22. 22
    AboutNumber.com▲7

    Everything you need to know about any number

    Jul 2026 · aboutnumber.com · its alternatives →

23. 23AP
    A phone based missed connections board▲7

    2015 · coachellamissedconnections.com · its alternatives →

24. 24PG
    Payment Gateway Calculator▲8

    2019 · founderhacker.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 →