Home › Services › Web development services › Web application design and development services › BigCommerce app development servicesBigCommerce app development servicesLooking to add more power to your BigCommerce store? At Deveit, we create custom-built tools and extensions that enhance performance, streamline operations, and connect with the platforms your team relies on. Whether you need a private solution for internal workflows or a public integration for the marketplace — we make it simple, fast, and reliable.Our Bigcommerce app development servicesFrom strategy to deployment, we offer end-to-end development for BigCommerce-specific solutions. Whether you’re building a custom integration or a marketplace-ready extension, our team supports you at every stage — with clean architecture and transparent communication. We treat every project as a long-term investment, optimized for performance, stability, and real-world use.Custom BigCommerce app developmentWe create features tailored to your store’s specific logic and growth goals. Whether it’s improving the checkout experience, syncing data with external systems, or building something completely new, our custom web app development services cover everything from backend setup to frontend usability. Our approach to custom BigCommerce app development ensures you’re getting more than code — you’re getting a tool built for results.Public and private developmentWe support both public marketplace apps and internal use cases. Each build is modular, secure, and easy to extend. We also make collaboration smooth — whether you’re working with us long-term or handing it off to another BigCommerce app developer later.Third-party API integrationWe integrate BigCommerce with CRMs, logistics providers, ERPs, and analytics tools. Our team works with REST and GraphQL to connect your store’s data to the systems that run your business.BigCommerce plugin and extension developmentNeed a specific feature or workflow? We create lightweight, maintainable plugins and extensions that add real functionality without bloating your system.Migration and upgrade servicesAlready using an outdated tool? We can migrate, refactor, or modernize your existing solution to align with the latest BigCommerce API version, your tech stack, and evolving customer expectations.BigCommerce app design solutionsWe don’t just code — we design experiences. Our team focuses on usability, speed, and consistency to make your software as user-friendly as it is powerful. Great UX increases adoption, reduces support requests, and keeps users engaged.User-friendly UI/UXWe design intuitive interfaces tailored to merchants, marketers, and customers alike. Our UI/UX design solutions ensure every screen makes sense and every interaction feels natural.Performance optimizationWe make sure your BigCommerce extension runs smoothly at scale. That means reducing load times, optimizing API usage, and keeping your software lean — even with high-volume stores.Scalable design solutionsAs your product grows, your UI should keep up. We build component-based interfaces that adapt to new features and use cases without requiring a complete overhaul.The BigCommerce app development processOur process is lean, transparent, and collaborative. We break development down into clear steps — from research and wireframing to testing and support — so you always know what’s next. The result: fewer surprises, better quality, and faster launch.Step 1: Consultation and requirement gatheringWe begin by understanding your store, goals, and what your app needs to do. This helps us define the scope, timeline, and tech stack.Step 2: Wireframing and UI/UX designWe visualize user flows and interface components to ensure the app will be intuitive and useful.Step 3: App development and customizationOur BigCommerce app developers build secure, modular code using BigCommerce APIs and industry best practices.Step 4: Integration and testingWe test every feature across environments and integrate smoothly into your existing store and tools.Step 5: Deployment and post-launch supportWe help you launch your app and monitor its performance — offering updates and support as your needs evolve. Every step of our process supports efficient, secure, and scalable custom BigCommerce app development, ensuring the final product works exactly as your business needs it to.Businesses we work withStartups and small businessesWe support growing businesses with focused, flexible apps that solve specific problems without overcomplicating things.Marketing and creative agenciesAs an ecommerce web development firm, we support agencies with custom apps built for client stores — branded, scalable, and reliable.Medium-sized businesses and enterprisesWe build robust apps with deep integrations and scalable architecture, helping larger teams automate and extend functionality at scale.Answers to frequently asked questionsHow can a custom BigCommerce app improve my store’s performance? It can automate tasks, streamline operations, improve UX, or add new sales and marketing features — all tailored to your business logic.How much does it cost to build a custom BigCommerce app? Pricing depends on scope, integrations, and design needs. Most apps range from $3,000 to $15,000. We provide fixed estimates after discovery.How long does it take to develop a custom BigCommerce app? Most apps take 3–6 weeks from idea to launch. More complex apps with integrations or marketplace publication may take longer.Why choose Deveit as a BigCommerce app development company? We combine technical skill with business understanding. We’re a trusted BigCommerce website design agency that also handles backend systems, APIs, and user experience — all in one team.I’m interested. How do I get started? Contact us — we’ll set up a quick call to understand your goals and recommend the best way forward. Contacts Looking for a BigCommerce app development agency that builds what you actually need? Let’s talk about how to make your store smarter, faster, and more powerful — with an app that fits your business.