battles / Platforms
Shopify Plus vs Sylius
Shopify Plus ($2,500/mo/mo, vibe code 2/10) vs Sylius ($1,200/mo/mo, vibe code 6/10). Sylius is the easier one to rebuild yourself — here is what you lose either way.
Platforms
$2,500/mo/mo
- MVP
- 4-8 weeks
- Full replacement
- never
Platforms
$1,200/mo/mo
- MVP
- 2-3 weeks
- Full replacement
- 9-15 months
easier to rebuild
get the build prompt →price gap / year
$15,600/mo
running both / year
$44,400/mo
our call
Start with Sylius — highest vibe code, weakest moat.
Shopify Plus
An AI can rebuild the admin screens of Shopify Plus in weeks. It cannot rebuild Shop Pay, the Black Friday capacity guarantee, the checkout extensibility sandbox, or the contractual SLA that makes a CFO sign off on $2,300+/mo.
you can rebuild
- Admin dashboard, catalog and variant management
- Discount and promotion rule engine
- Order and fulfilment workflow screens
- B2B company accounts and custom price lists for a handful of buyers
- Wholesale/expansion storefront as a separate lightweight site
what you lose
- Shop Pay's saved-wallet 1-click checkout and its measurable conversion lift.
- Contractual 99.99% uptime SLA and Black Friday capacity planning.
- Checkout extensibility and Shopify Functions running server-side at the edge.
- Out-of-scope PCI-DSS: Shopify holds the card data, you do not.
- Multi-store organisation management with shared catalog and centralised roles.
real moats
- Shop Pay buyer network with hundreds of millions of saved wallets.
- Peak-event infrastructure proven at millions of checkouts per minute.
- Payments, Capital, Balance and Installments bundled into the same contract.
- App and agency ecosystem trained specifically on the Plus extension model.
Sylius
Sylius is free; what you pay for is the Plus licence, the Symfony expertise and years of hardened cart, promotion and taxation code. An AI can generate a comparable core in weeks, but promotion rules and multi-channel pricing are where custom builds rot.
you can rebuild
- Catalog, taxon tree and product variant/option modelling
- Cart and checkout state machine with address and shipping steps
- Order, payment and shipment records with status transitions
- Admin CRUD screens for products, orders and customers
- Channel-based multi-currency and multi-locale storefronts
what you lose
- A battle-tested promotion engine with rule/action composition
- Symfony ecosystem bundles (workflow, security, messenger) already wired together
- The Sylius Plus features: RMA, multi-source inventory, B2B partner accounts
- A large pool of agencies and developers who already know the codebase
- Upstream security patches and LTS upgrade paths
real moats
- Agency and developer familiarity with the Symfony/Sylius conventions
- Plugin ecosystem covering payments, ERP connectors and marketplaces
- Years of edge cases baked into the promotion, tax and shipping engines
open source escape hatches
- vendure-ecommerce/vendure MIT
- medusajs/medusa MIT
- saleor/saleor BSD-3
Questions people ask
Which is easier to rebuild with AI, Shopify Plus or Sylius?
Sylius. It scores 6/10 on vibe code with a moat of 4/10, so an AI-assisted MVP takes about 2-3 weeks and a full replacement about 9-15 months.
Which one costs less, Shopify Plus or Sylius?
Sylius at $1,200/mo/mo for a typical mid-market store. The gap between the two is about $15,600/mo a year.
What do I lose if I replace Shopify Plus?
Shop Pay's saved-wallet 1-click checkout and its measurable conversion lift. Contractual 99.99% uptime SLA and Black Friday capacity planning. Checkout extensibility and Shopify Functions running server-side at the edge.
What do I lose if I replace Sylius?
A battle-tested promotion engine with rule/action composition Symfony ecosystem bundles (workflow, security, messenger) already wired together The Sylius Plus features: RMA, multi-source inventory, B2B partner accounts
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