BigCommerce app development servicesHome › Services › Web development services › Web application design and development services › BigCommerce app development services Custom BigCommerce apps to support your business growthLooking to add more power to your BigCommerce store? At Deveit, we build custom BigCommerce apps, extensions and API integrations that enhance performance, streamline operations and connect your store with the platforms your team relies on. Whether you need a private app for internal workflows or a public app 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 logic and growth goals. Whether it’s improving checkout, syncing data with external systems or building something completely new, our custom web app development services cover everything from backend setup and BigCommerce APIs to frontend usability. Our approach to custom BigCommerce app development means you get more than code: 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, ERPs, logistics providers and analytics tools. Our BigCommerce API integration work uses 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and extensions that add real functionality without bloating your system.Migration and upgrade servicesAlready using an outdated tool?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 for merchants, marketers and customers alike. Our UI/UX design solutions make sure every screen in your BigCommerce app 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 stages — from research and wireframing to testing and ongoing support — so you always know what comes next. The result is fewer surprises, higher quality, and a 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, publish it to the BigCommerce App Marketplace when needed, and monitor its performance, offering updates and support as your needs evolve. Every step supports secure, scalable custom BigCommerce app development.Businesses we work with Startups 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 build custom apps for agencies’ client stores as part of our white label ecommerce development: 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 questionsWhat is the difference between a private and a public BigCommerce app? A private app is built for one store and its internal workflows. A public app is listed in the BigCommerce App Marketplace for any merchant to install, so it must pass BigCommerce’s review and support many store setups.How much does it cost to build a custom BigCommerce app? Most apps cost $3,000 to $15,000, depending on scope, integrations and design needs. We provide a fixed estimate after discovery.How long does it take to develop a custom BigCommerce app? Most apps take 3–6 weeks from idea to launch. Complex apps with integrations or marketplace publication take longer.Should I build a custom app or use one from the BigCommerce marketplace? Start with a marketplace app if it covers your needs. A custom BigCommerce app makes sense when you pay for several apps to fake one workflow, need unique business logic or want to own the code.Why choose Deveit as a BigCommerce app development company? We combine technical skill with business understanding. Our BigCommerce app developers handle backend, APIs and UX in one team, and as a BigCommerce website design agency we also build full BigCommerce stores. 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.
