companies of all sizes
What you get
From custom storefronts to multi-vendor marketplaces, we build commerce stacks that load fast, convert reliably, and integrate with your payments, inventory, and marketing tools.
Headless and composable commerce architecture
Checkout, payments, and subscription flows
Catalog, search, and merchandising systems
Analytics, SEO, and conversion optimization
Common buyer questions
When is custom ecommerce development better than Shopify?
Custom ecommerce development is usually better when checkout logic, subscriptions, bundles, marketplace workflows, performance, integrations, or ownership requirements exceed what a standard Shopify theme and app stack can handle. The financial trigger is typically $30K–$100K/month GMV where transaction fees and app costs compound.
Can Moydus build headless ecommerce platforms?
Yes. Moydus builds headless and composable commerce systems with custom Next.js storefronts, catalog logic, payments, subscriptions, search, analytics, and operational integrations. A headless Shopify frontend typically costs $60K–$150K; a fully custom backend runs $100K–$300K+.
Does ecommerce development include SEO and performance?
Yes. Ecommerce builds include technical SEO, fast page architecture, Core Web Vitals optimization, conversion-focused UX, analytics events, and performance work for product, collection, and checkout flows. Custom frontends consistently outperform theme-based stores on mobile load times.
How long does a custom ecommerce build take?
A headless storefront on an existing backend (Shopify) typically takes 10–18 weeks. A fully custom ecommerce platform with catalog, checkout, and integrations takes 16–28 weeks. Timeline depends on catalog complexity, subscription logic, ERP/CRM integrations, and data migration from existing platforms.
How much does ecommerce development cost?
A headless Shopify build (custom Next.js frontend on Shopify backend) costs $60,000–$150,000. A fully custom ecommerce platform costs $100,000–$300,000+. B2B ecommerce with tiered pricing, purchase orders, and ERP integration typically starts at $120,000. Use the website cost calculator for a project-specific range.
Custom ecommerce vs Shopify: when to replatform
Shopify and similar platforms cover most DTC use cases up to $1M–$3M annual revenue. Beyond that, platform costs (transaction fees, app subscriptions, plus plan) compound quickly, and the workflow gaps — custom checkout, B2B pricing, subscription bundles, multi-brand catalog — require increasingly fragile app layers.
Replatforming triggers: monthly platform costs exceeding $3,000–$5,000, checkout logic that no app cleanly handles, ERP or WMS integrations that break under order volume, or a product roadmap that requires backend ownership to execute.
| Factor | Shopify / Platform | Custom Ecommerce |
|---|---|---|
| Monthly platform cost at $1M GMV | $500–$2,000/mo | Hosting only (~$100–$300) |
| Transaction fees | 0.15–2% | None |
| Custom checkout logic | App-dependent | Full control |
| B2B / wholesale pricing | Limited | Native |
| Subscription + bundle logic | 3rd-party apps | Native |
| ERP / WMS integration at scale | Fragile | Direct API |
| Code ownership | No | Yes |
What headless ecommerce development includes
A headless build separates the storefront (frontend) from the commerce backend. The most common pattern: a custom Next.js storefront consuming the Shopify Storefront API. This keeps Shopify's order management and fulfillment infrastructure while replacing the theme with a performance-optimized custom frontend.
A fully custom ecommerce build owns the entire stack — catalog, pricing, cart, checkout, subscriptions, admin, fulfillment integrations, and analytics. This is the right path when B2B pricing tiers, multi-vendor logic, or compliance requirements exceed what any hosted backend can cleanly support.
- Headless Shopify storefront: Custom Next.js frontend on Shopify backend. Keeps order management; replaces the theme. Budget: $60K–$150K.
- Fully custom ecommerce platform: Owned catalog, cart, checkout, subscriptions, admin, and integrations. Budget: $100K–$300K+.
- B2B ecommerce: Tiered pricing, purchase orders, credit terms, sales rep portals, and ERP sync. Budget: $120K–$250K+.
- Marketplace: Multi-vendor catalog, seller onboarding, commission logic, payouts, and dispute handling. Budget: $150K–$400K+.
Ecommerce development cost and timeline breakdown
The ranges below assume US-market senior engineering. Timeline is measured from signed scope to production launch, assuming client-side review and feedback within 48 hours of each milestone demo.
| Build Type | Budget Range | Timeline | Key Variables |
|---|---|---|---|
| Headless Shopify storefront | $60,000–$150,000 | 10–18 weeks | Custom checkout, search, product pages |
| Fully custom ecommerce | $100,000–$300,000+ | 16–28 weeks | Catalog complexity, subscription logic |
| B2B ecommerce platform | $120,000–$250,000 | 14–24 weeks | Pricing tiers, PO flow, ERP integration |
| Marketplace | $150,000–$400,000+ | 20–36 weeks | Vendor onboarding, payouts, moderation |
| Ecommerce + SaaS hybrid | $120,000–$350,000 | 16–30 weeks | Subscription + product ownership model |
Performance and conversion after launch
Custom storefronts consistently outperform theme-based stores on Core Web Vitals. Teams moving from Shopify themes to headless frontends report LCP improvements of 40–60%, with mobile conversion uplifts of 10–25% in the 90 days post-launch.
Moydus includes technical SEO (structured data, canonical URLs, sitemap, hreflang where needed), performance budgets, analytics event tracking, and a post-launch monitoring checklist in every ecommerce build. Conversion rate optimization work is available as a growth-phase retainer.