Alternatives

Products that do what F(x) does

Verify a listing before you buy it.

1. 1
   ListKit▲206

   Close your next deal with unlimited triple-verified leads

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2. 2
   Flippa + Zeroqode▲148

   Launch your own Amazon, Upwork & other apps without code

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3. 3
   frontpage.sh▲165

   A perpetual auction for eight ad squares

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4. 4
   Cue▲197

   Social proof, FOMO & conversion optimization tool

   2020

5. 5
   SimpleFunnel▲180

   Collect payments without writing code (Stripe)

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6. 6
   ProfitWell Revenue Recognition▲215

   Audit-proof SaaS revenue recognition for Stripe & Chargebee

   2017

7. 7
   Revenue by Sleek Analytics▲84

   See your revenue alongside your traffic. In real time.

   Apr 2026

8. 8
   HonorBox▲107

   Sell digital products with just Stripe and GitHub

   Jul 2026 · honorboxx.github.io

9. 9
   Stripe Revenue Recognition▲102

   Revenue reporting for high-growth businesses

   2021

10. 10
    Flippa▲105

    The #1 place to buy and sell websites, domains and apps

    2014

11. 11
    Guard Your Connect▲114

    Fraud protection for Stripe Connect marketplaces

    2025

12. 12
    SaveMRR▲104

    See how much you're losing to failed payments on Stripe

    Apr 2026

13. 13
    YouCheck▲96

    Software to buy & sell files securely and without scams

    2022

14. 14
    Buying Signals▲87

    Search less, sell more. Find B2B prospects with BANT.

    2021

15. 15
    oxpecker▲72

    Know which of your lines a vendor just broke

    23d ago · oxpecker.dev

16. 16ST
    Sales Tracker for Stripe▲53

    2013 · itunes.apple.com

17. 17
    CheckFa.st▲40

    Data-driven validation of your idea's market and financials

    2024

18. 18
    dropIQ▲9

    Score your store as a first-time visitor vs a repeat buyer

    5d ago · dropiq.ai

19. 19
    Audeza▲1

    Scan your landing copy before Stripe or Paddle scans it

    19d ago · audeza.com

20. 20CQ
    Create QuickBooks Sale Receipt from 3rd Party Transactions▲5

    Hello everyone. I created a very niche product for my payment gateway customers. They are struggling with the manual process of marking transaction(s) as received in QuickBooks for their franchisor reports and bookkeeping. Paysync.ca turns a manual process into an almost fully automated solution by turning a transaction into a Sale Receipt. We currently support NMi gateways or affiliated gateways and soon importing CSV files. If you are interested you can join the beta program at https://paysync.ca Hacker News registrants will be granted access in front of the line. Have a good day!

    2023 · paysync.ca

21. 21
    ListingPilot▲3

    Supplier data to marketplace-ready listing packs

    25d ago · listingpilot-ai.pages.dev

22. 22
    Marketplace Risk Detector — Safespot ▲2

    See the shift before the shock.

    8d ago · market-risk-detector-pink.vercel.app

23. 23
    CarBluff.com▲3

    Is that car listing a scam? Scan it in 10 seconds!

    25d ago · carbluff.com

24. 24
    BuyingWindow▲3

    Know who's ready to buy, before they start looking

    27d ago · buyingwindow.co.uk

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