battles / Checkout
FastSpring vs Fetchify
FastSpring ($750/mo/mo, vibe code 3/10) vs Fetchify ($100/mo/mo, vibe code 6/10). Fetchify is the easier one to rebuild yourself — here is what you lose either way.
Checkout
$750/mo/mo
- MVP
- 2 weeks
- Full replacement
- Never (Requires global tax entities, banking rails, legal indemnification)
Checkout
$100/mo/mo
- MVP
- 1 day
- Full replacement
- Never, due to official postal database licensing
easier to rebuild
get the build prompt →price gap / year
$7,800/mo
running both / year
$10,200/mo
our call
Start with Fetchify — highest vibe code, weakest moat.
FastSpring
FastSpring is not just checkout software; it assumes legal and financial liability as the Merchant of Record. Rebuilding the checkout UI in React is trivial, but self-hosting global VAT/GST compliance, localized payment acquirers, and fraud liability requires massive legal infrastructure.
you can rebuild
- Embeddable checkout UI modal and hosted payment pages
- Basic subscription management and recurring billing webhooks
- License key generation and digital file fulfillment triggers
- Customer portal for invoice downloads and subscription cancellations
- Multi-currency storefront price conversion displays
what you lose
- Merchant of Record legal status and cross-border indirect tax liability assumption
- Automated VAT/GST calculation, collection, and filing across 200+ global jurisdictions
- Global payment gateway routing, localized payment methods (iDEAL, Pix, Alipay), and acquirer optimization
- Merchant-level chargeback and fraud liability protection
- Payer of record status handling international currency conversion payouts
real moats
- Global legal and tax registration network with local tax authority filings
- Underwritten acquiring bank relationships and payment processing infrastructure
- Financial liability indemnification for chargebacks, VAT audits, and sanctions checks
open source escape hatches
- Kill Bill Apache-2.0
- Lago AGPL-3.0
- Hyperswitch Apache-2.0
Fetchify
The autocomplete UI component takes two hours to write, but Fetchify's true product is licensed access to official national postal databases like Royal Mail PAF. You cannot recreate official premise-level postal databases with open-source software or LLM prompts.
you can rebuild
- Frontend address autocomplete input widget
- Address field auto-filling logic for checkout forms
- Basic country-level address format mapping
- API request caching layer
- Email and phone format validation helpers
what you lose
- Official Royal Mail PAF (Postcode Address File) licensing and updates
- USPS CASS-certified address normalization
- Premise-level unit and suite precision globally
- Carrier-compliant address formatting for shipping labels
- Automated monthly postal data directory synchronization
real moats
- Direct licensing contracts with national postal authorities
- Global premise-level address normalization datasets
- Carrier-standardized address output formats
open source escape hatches
- Pelias Apache-2.0
- Nominatim GPL-2.0
- libaddressinput Apache-2.0
Questions people ask
Which is easier to rebuild with AI, FastSpring or Fetchify?
Fetchify. It scores 6/10 on vibe code with a moat of 3/10, so an AI-assisted MVP takes about 1 day and a full replacement about Never, due to official postal database licensing.
Which one costs less, FastSpring or Fetchify?
Fetchify at $100/mo/mo for a typical mid-market store. The gap between the two is about $7,800/mo a year.
What do I lose if I replace FastSpring?
Merchant of Record legal status and cross-border indirect tax liability assumption Automated VAT/GST calculation, collection, and filing across 200+ global jurisdictions Global payment gateway routing, localized payment methods (iDEAL, Pix, Alipay), and acquirer optimization
What do I lose if I replace Fetchify?
Official Royal Mail PAF (Postcode Address File) licensing and updates USPS CASS-certified address normalization Premise-level unit and suite precision globally
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