The challenge
A ₹40Cr apparel brand had outgrown Shopify — platform fees ate margin, checkout was slow on mobile, and Shopify's data export was crippling for marketing.
All case studies
Clothing & Fashion
Migrating a ₹40Cr apparel brand off Shopify onto a custom stack
Cut platform costs 70%, sped up checkout 3×, kept zero downtime through Diwali traffic.
5 monthsClient: D2C apparel brand · ₹40Cr scale
−70%
Platform cost cut
3× faster
Checkout speed
0 min
Diwali downtime
+18%
Mobile conversion lift
The transformation
Before vs After
BeforeWhere they started
—
★ —
- Shopify platform fees ate margin.
- Mobile checkout slow + janky.
- Customer-data exports crippled marketing.
- Customising the cart needed expensive Shopify apps.
AfterWhere Sphyx took them
Buy ₹999
★ 4.9
Free Ship
👕
−70%
- Owned storefront on Next.js + headless backend.
- Checkout 3× faster on mid-range Android.
- Customer + order data live in their warehouse.
- Zero downtime through Diwali peak.
Our approach
A sequential playbook — each step builds on the one before it.
1
Next.js storefront + headless commerce backend.
2
Razorpay + Shopify-Pay parity to preserve customer trust.
3
Phased migration: catalogue → checkout → backoffice.
4
Diwali-window freeze with full rollback playbook.
Outcomes
Platform cost cut
−70%
Checkout speed
3× faster
Diwali downtime
0 min
Mobile conversion lift
+18%