Shopify Development Services
Expert senior Shopify App Store apps development services built for high-value, scalable merchant solutions. Our dedicated Shopify specialists craft custom public apps, private apps, app extensions, and powerful integrations that drive merchant efficiency, boost revenue features, and scale seamlessly with growing businesses. We eliminate unreliable integrations, slow performance, and limited functionality, delivering robust, merchant-friendly apps that merchants love to install and use while handling high usage without issues.
Our Shopify App Development Expertise
- Public & Private Apps – Full-featured apps using Node.js, Ruby, or Go, with secure OAuth, webhooks, and polished embedded admin UIs
- App Extensions – Theme app extensions, checkout UI extensions, product configurator extensions, admin UI extensions, and more – built with React for seamless merchant experience
- Custom Integrations & APIs – GraphQL Admin API, Storefront API, Billing API, webhooks for real-time sync, ERP/CRM/loyalty/dynamic pricing/abandoned cart recovery tools
- Billing & Monetization – Subscription models, usage-based charging, one-time fees via Shopify Billing API – optimized for recurring revenue
- Performance & Reliability – Fast API responses, efficient data handling, error monitoring, scalable hosting, and high-availability architecture
- SEO & Merchant Readiness – Clear documentation, intuitive onboarding, merchant education, App Store listing optimization
- Security & Compliance – PCI DSS readiness where applicable, secure code practices, GDPR/CCPA alignment, fraud protection patterns
- Migration & Upgrades – From legacy custom apps to modern Dev Dashboard apps (post-2026 changes), feature upgrades, and seamless transitions
- App Publishing & Support – Full App Store submission support, unlisted/custom distribution, ongoing maintenance, bug fixes, seasonal updates, A/B testing infrastructure
Why QuartzDevs for Shopify Apps?
- ✓Senior-level talent only – no juniors or mid-level fillers
- ✓Seamless timezone & cultural alignment with merchant-first mindset
- ✓Production-ready, high-value Shopify apps from day one
- ✓98% client satisfaction rate & long-term partnerships with DTC brands & enterprises
- ✓Transparent communication, agile processes, and a true ownership mentality
- ✓Architectures and customizations designed for merchant adoption and revenue growth without performance bottlenecks or rework
They Trust Us
Frequently Asked Questions
Our senior Shopify developers specialize in public/private app development (Node.js/Ruby/Go), app extensions (React-based), integrations (GraphQL Admin API, Storefront API, webhooks), billing/monetization setups, performance optimization, App Store submissions, custom extensions, and full merchant-focused solutions. We build high-value, scalable, secure apps optimized for merchant adoption, recurring revenue, and ecosystem growth.