battles / Platforms
Spree Commerce vs Swell
Spree Commerce ($500/mo/mo, vibe code 6/10) vs Swell ($599/mo/mo, vibe code 5/10). Spree Commerce is the easier one to rebuild yourself — here is what you lose either way.
Platforms
$500/mo/mo
- MVP
- 2 weeks
- Full replacement
- 8-14 months
easier to rebuild
get the build prompt →Platforms
$599/mo/mo
- MVP
- 2-3 weeks
- Full replacement
- 9-15 months
price gap / year
$1,188/mo
running both / year
$13,188/mo
our call
Start with Spree Commerce — highest vibe code, weakest moat.
Spree Commerce
Spree is free code you already own. Rebuilding it in a modern stack is realistic; you inherit the maintenance and lose the Rails extension ecosystem.
you can rebuild
- Catalog, taxonomy and variant modelling
- Cart and multi-step checkout
- Order, shipment and return records
- Admin CRUD screens
- Multi-store and multi-currency basics
what you lose
- The Rails extension ecosystem (payments, subscriptions, analytics)
- Years of accumulated promotion and tax edge cases
- Upstream security releases
- Developers who already know the API surface
real moats
- Extension ecosystem and long-running community
- Accumulated commerce edge cases in tax, promotions and returns
open source escape hatches
Swell
A headless commerce API is a well-understood build. What Swell sells is not having to run it: uptime, dashboard, subscription billing and payment plumbing maintained by someone else.
you can rebuild
- Products, variants and pricing rules via API
- Cart, checkout session and order APIs
- Customer accounts and saved payment methods
- Webhook events for downstream systems
- A basic merchant dashboard
what you lose
- A maintained subscription billing engine with retries and dunning
- Hosted uptime and scaling during traffic spikes
- Prebuilt payment, tax and shipping integrations
- A dashboard non-developers can operate
real moats
- Maintained integrations across payments, tax and shipping
- Subscription billing correctness accumulated across merchants
- Operational reliability you would otherwise staff for
Questions people ask
Which is easier to rebuild with AI, Spree Commerce or Swell?
Spree Commerce. It scores 6/10 on vibe code with a moat of 3/10, so an AI-assisted MVP takes about 2 weeks and a full replacement about 8-14 months.
Which one costs less, Spree Commerce or Swell?
Spree Commerce at $500/mo/mo for a typical mid-market store. The gap between the two is about $1,188/mo a year.
What do I lose if I replace Spree Commerce?
The Rails extension ecosystem (payments, subscriptions, analytics) Years of accumulated promotion and tax edge cases Upstream security releases
What do I lose if I replace Swell?
A maintained subscription billing engine with retries and dunning Hosted uptime and scaling during traffic spikes Prebuilt payment, tax and shipping integrations
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