Top Custom Ecommerce App Developers: Shopify Apps, Magento Extensions

Ecommerce has reached a defining moment in 2026. Global ecommerce sales are forecast to hit $6.88 trillion worldwide this year, a 7.2% increase from the previous year, with ecommerce now making up 21.1% of total retail sales. Over three billion people will now buy something online by 2026. And while those headline numbers are impressive, the real story is happening at the platform level: the apps and plugins powering individual stores are increasingly what separates high-performing merchants from those leaving revenue on the table. Leading ecommerce app developers serve clients worldwide, bringing global expertise to local markets and helping businesses succeed in diverse regions.

Mobile commerce alone will account for nearly 60% of total online retail sales — approximately $4.01 trillion, in 2026, with around 1.65 billion people expected to shop via smartphone. Critically, 70% of U.S. mobile shoppers prefer to make purchases through dedicated ecommerce apps rather than mobile websites. Meanwhile, the AI-in-ecommerce market is projected to hit $9.9 billion in 2026, with 84% of ecommerce businesses ranking AI as their highest priority. The rise of ai driven personalization is transforming tailored shopping experiences, improving user engagement, and supporting scalable, high-performance retail solutions.

For merchants and enterprises on Shopify, Magento (Adobe Commerce), or any major platform, these trends translate into one clear imperative: invest in custom apps, smart plugins, and mobile experiences that go beyond what out-of-the-box solutions offer. A commerce app and comprehensive digital solutions are now essential for modern retailers to enhance customer experience and drive business growth. Choosing the right ecommerce app development company to build those solutions is a strategic investment for long-term growth and digital success.

Ecommerce app developers: What they do and why it matters

Off-the-shelf apps and extensions can only take you so far. When your business has workflows that standard plugins can’t support — custom pricing rules, unique fulfillment logic, specialized integrations, or branded mobile apps — you need ecommerce app development companies that build to your exact specification. Commerce app development involves building, customizing, and integrating advanced mobile and enterprise solutions tailored to your business needs.

Mobile apps can generate up to 7x more revenue per user and contribute 40–50% of online sales for ecommerce brands. Dedicated shopping apps now handle 54% of mobile commerce transactions, compared to mobile browsers. The business case for custom app development has never been stronger. Essential features like secure authentication, multiple payment options, and responsive customer support, along with other key features, set successful ecommerce apps apart by ensuring a seamless user experience and driving higher engagement.

The best ecommerce app developers combine deep platform expertise — Shopify APIs, Magento module architecture, REST/GraphQL — with a genuine understanding of retail operations, customer experience, and conversion optimization. They are committed to ensuring every app meets high standards of performance, security, and user experience.

Benefits of ecommerce mobile apps

Ecommerce mobile apps have become a cornerstone of digital success for businesses aiming to thrive in today’s competitive landscape. By partnering with leading ecommerce app development companies, brands can unlock a host of advantages that go far beyond what a standard mobile site or out-of-the-box solution can offer. Custom ecommerce app development empowers businesses to deliver seamless shopping experiences tailored to their customers' evolving expectations—across devices and platforms.

One of the most significant benefits of investing in mobile apps is the ability to boost customer engagement and foster long-term loyalty. With features like personalized push notifications, exclusive offers, and real-time updates, ecommerce apps keep your brand top-of-mind and encourage repeat purchases. A streamlined checkout process, designed specifically for mobile devices, reduces friction and cart abandonment, directly increasing conversion rates and revenue. Moreover, custom ecommerce solutions can be built with secure payment systems and user-friendly interfaces, ensuring that every transaction is both safe and effortless.

Mobile apps also provide businesses with powerful tools for inventory management and operational efficiency. By integrating with your existing ecommerce platform and third-party tools, a well-designed app can offer real-time product availability, automated stock updates, and seamless order tracking. This level of integration not only enhances the customer experience but also supports your team in delivering high-quality service at scale.

Another key advantage is access to advanced analytics. Ecommerce apps can capture detailed insights into user engagement, shopping behaviors, and sales trends, enabling businesses to make data-driven decisions and refine their marketing strategies. With the right app development company, you can leverage these analytics to optimize your digital storefront, personalize the shopping journey, and stay ahead of shifting market demands.

Choosing the right development partner is crucial. Look for an app development company with proven technical expertise, experience in cross platform development, and a strong focus on delivering high quality, custom ecommerce solutions. The best partners will ensure seamless integration with your existing systems, scalable architecture to support growth, and intuitive design that delights users. Whether you’re a mid-sized business seeking to expand your digital presence or an established retailer aiming to enhance customer satisfaction, investing in a custom ecommerce app is a strategic move that delivers measurable results.

In today’s mobile-first world, a reliable partner can help you create a user-friendly app that not only meets your diverse business needs but also drives customer engagement, loyalty, and long-term growth. With the right approach to ecommerce app development, your business can deliver exceptional shopping experiences and secure a lasting competitive edge.

Top ecommerce app development companies

1. Dinarys

Website: dinarys.com

Headquarters: USA & DACH region (Germany, Austria, Switzerland) Platforms: Shopify, Shopify Plus, Adobe Commerce (Magento 2), BigCommerce, Shopware, Commercetools Best For: Custom Shopify apps, Magento 2 extensions, ecommerce mobile apps, B2B and B2C solutions

Dinarys is one of the top ecommerce app development companies serving businesses across the United States and Europe, with over 10 years of focused ecommerce expertise and 400+ projects delivered for US and European clients. As a certified Shopify Partner and certified Magento development agency, Dinarys operates as both a hands-on development team and a strategic ecommerce consultancy — helping businesses decide not just what to build, but whether to build it at all.

Dinarys has worked with notable clients such as leading European retailers, global FMCG brands, and enterprise manufacturers, delivering custom ecommerce solutions, digital storefronts, and omnichannel retail systems tailored to their business needs.

Their approach is product-centric: every custom app or extension starts with a deep discovery phase that maps requirements to business objectives before a single line of code is written. This combination of technical depth and commercial awareness, along with strong project execution and a proven track record of delivering exceptional results, has made Dinarys a preferred partner for growth-stage brands and established enterprises in the US, DACH, and wider European markets.

Custom Shopify app development

Dinarys builds both public (Shopify App Store) and private custom Shopify apps designed to solve operational challenges that generic apps can’t address. Their development process covers the full lifecycle — from ideation and UI/UX design through full-stack development, API integration, QA, App Store submission where applicable, and ongoing post-launch maintenance.

Key Shopify app categories they develop include:

• Order Management Apps — Automated fulfillment workflows, real-time order tracking, error reduction, and multi-channel sync that streamline operations from checkout to delivery.
• Customer Service Apps — Automated ticketing systems, live chat integrations, and personalized communication tools that turn support interactions into loyalty-building moments.
• Inventory Management Apps — Real-time stock visibility across multiple sales channels, automatic reorder point triggers, and inventory sync that prevents overselling.
• Marketing & Personalization Apps — Tools integrating personalization engines, AI-driven product recommendations, and targeted promotions based on real-time customer behavior — increasingly important as AI becomes a core ecommerce priority in 2026.
• B2B Commerce Apps — Applications enabling custom pricing by customer group, bulk ordering workflows, quote management, and account-level catalog access for wholesale and distributor models.
• Shopify Integration Bridges — Custom API bridges connecting Shopify to ERPs, CRMs, accounting software, logistics platforms, and third-party services via REST, GraphQL, OAuth 2.0, and webhook automation.

Magento 2 / Adobe Commerce Extension Development

As a certified Magento development company, Dinarys designs and builds custom Magento 2 extensions and modules that slot seamlessly into existing stores. Every extension includes a custom admin panel for easy management, and Dinarys handles compatibility testing across extension interactions and theme conflicts — a critical detail that many teams overlook. Extension types include custom payment gateway integrations, loyalty program modules, subscription service plugins, custom reporting dashboards, ERP and CRM connectors, and specialized B2B pricing modules.

Ecommerce Mobile App Development

Given that mobile now drives the majority of global ecommerce traffic and sales, Dinarys’s mobile development practice is a strategic differentiator. They build custom ecommerce mobile applications for iOS and Android, delivering fast, intuitive, and fully branded shopping experiences that extend and enhance a merchant’s existing platform. Their mobile offering covers native apps, cross-platform solutions using React Native and Flutter, and progressive web apps (PWAs), leveraging modern frameworks for scalable, flexible, and efficient development with seamless user experiences across devices. Technology selection is driven by performance requirements, audience, and budget.

Additional Ecommerce App Services:

• Shopify and Magento store consulting and technical audits
• Platform migrations (Magento to Shopify, WooCommerce to Shopify, BigCommerce, and more)
• Headless commerce development with custom frontend frameworks and Shopify Hydrogen
• DevOps and cloud infrastructure for ecommerce platforms
• Team augmentation — dedicated Shopify or Magento developers embedded in your in-house team
• Ongoing support, maintenance, and performance optimization
• Expertise in building omnichannel retail systems and digital storefronts to support business growth and seamless customer experiences

Dinarys has delivered projects across FMCG, fashion, electronics, health and pharma, toys, furniture, and food and beverage — bringing industry-specific insight to every build.

2. Atwix

Website: atwix.com

Headquarters: Chicago, IL (founded 2006)

Platforms: Adobe Commerce (Magento 2)

Best for: Enterprise Magento implementations, complex B2B module development

Atwix is a leading software development firm and the #1 Magento contributor worldwide, with Gold Adobe Solution Partner status and over 300 certifications. Their developers actively contribute code improvements to the Magento platform itself, keeping them at the very edge of what Adobe Commerce can do. They are the go-to choice for enterprises that need highly complex custom module development, B2B ecommerce solutions, and deep ERP integrations on the Adobe Commerce platform.

Key Services: Adobe Commerce custom module development, B2B ecommerce solutions, ERP and third-party integrations, platform migration, performance optimization, web development, and web app solutions.

3. Amasty

Website: amasty.com

Headquarters: Global (EU and US presence)

Platforms: Magento 2 / Adobe Commerce

Best for: Ready-made and custom Magento 2 extensions, Hyva-compatible plugins

Amasty is a premier Magento extension builder with over 100 Magento 2 Hyva-compatible plugins in their catalog, trusted by thousands of merchants and agencies globally. They offer both off-the-shelf extensions and custom development services. Amasty supports growing businesses with scalable solutions that adapt to evolving ecommerce needs. For businesses needing battle-tested plugins — SEO suites, one-step checkout, Google Analytics integration, custom labels, and more — Amasty is a first-stop resource with a strong partner and support network.

Key services:

• Pre-built Magento 2 extensions
• Custom module development
• Commerce app development services
• Hyva theme compatibility
• Magento store consulting
• Performance optimization

4. Mageworx

Website: mageworx.com

Headquarters: Global

Platforms: Magento 2 / Adobe Commerce, Shopify

Best for: Specialized Magento extensions and Shopify apps for mid-market merchants

Mageworx builds Magento extensions and Shopify apps used on more than 40,000 stores worldwide, with a philosophy focused on building what merchants actually need rather than feature-bloated solutions. Their catalog includes standout products for advanced product options, SEO, shipping logic, checkout optimization, order management, delivery date scheduling, and customer-specific pricing. These solutions help merchants optimize their online store for seamless browsing, purchasing, and management. They also offer full custom development services.

Key services:

• Custom Magento 2 extensions
• Shopify app development
• Checkout optimization plugins
• Shipping and delivery extensions
• Secure payment gateways integration
• SEO suite development
• Magento maintenance and support

5. Mageplaza

Website: mageplaza.com

Headquarters: Vietnam (serving global clients)

Platforms: Magento 2 / Adobe Commerce, Shopify

Best for: Magento extension development, Shopify apps, ecommerce consulting

Mageplaza maintains a large catalog of regularly updated, well-documented Magento modules covering payment gateways, one-step checkout, free gift promotions, SEO, import/export, security, and marketplace integrations. Their extensions are thoroughly tested for current Magento version compatibility. Beyond ready-made plugins, they offer custom Magento and Shopify development for merchants with unique requirements. Mageplaza also provides innovative mobile solutions for ecommerce merchants, ensuring seamless mobile app experiences that drive engagement and operational efficiency.

Key services:

• Magento 2 extensions (checkout, payments, SEO, marketing)
• Custom Shopify app development
• Ecommerce consulting
• Adobe Commerce implementations

6. Meetanshi

Website: meetanshi.com

Headquarters: Bhavnagar, India (serving global clients)

Platforms: Magento 2 / Adobe Commerce, Shopify

Best For: Magento merchants needing reliable extensions and mobile app development

Meetanshi focuses on Magento and Adobe Commerce, offering tailored mobile app development, extensions, and backend integrations with a strong reputation among merchants in Europe and Asia. Their core strength is deep platform expertise combined with performance-led development — a reliable choice for retailers wanting extensions that work without over-engineering.

Key services:

• Magento 2 extension development
• Commerce app development
• Mobile app development for Magento stores
• Backend integrations
• Adobe Commerce customization

7. MageComp

Website: magecomp.com

Headquarters: India (serving global clients)

Platforms: Magento 2, Shopify, and mobile

Best for: B2B Magento extensions, payment solutions, mobile app development (including iOS apps)

MageComp provides expertise across Magento services, Shopify, mobile app development, and digital marketing, offering a wide catalog of extensions spanning shipping solutions, payment gateways, B2B tools, multi-vendor addons, and SMS/OTP notification systems. Their Hyva-compatible extensions make them a forward-looking choice for merchants modernizing their frontend, while their mobile app development extends Magento stores to iOS and Android, delivering scalable iOS apps tailored to regional market needs.

Key services:

• Magento 2 extension development
• B2B commerce plugins, payment and shipping solutions
• Shopify development
• Mobile app development (iOS apps)
• Hyva-compatible modules

8. AppJetty

Website: appjetty.com

Headquarters: India (serving global clients)

Platforms: Magento 2, Shopify, WooCommerce, Odoo, Salesforce, Dynamics CRM

Best For: Multi-platform plugin development, Magento mobile app builder

AppJetty helps SMBs and enterprises extend their Magento, Shopify, Odoo, and CRM platform installations with feature-rich plugins, extensions, and apps. Their MageMob App Builder is a standout product — a pre-built framework that lets merchants create fully loaded native iOS and Android Magento 2 mobile apps without starting from scratch, dramatically reducing time-to-market for mobile commerce at a moment when mobile accounts for the majority of global ecommerce traffic.

Key Services: Magento 2 mobile app builder (MageMob), custom extensions for Magento and Shopify, CRM plugins (Salesforce, SugarCRM, Dynamics), delivery date and shipping extensions, multi-platform app development.

9. Venn Apps

Website: vennapps.com

Headquarters: London, UK

Platforms: Shopify, Shopify Plus

Best For: Premium ecommerce mobile app development for fashion, beauty, and DTC Shopify brands

Venn Apps is a specialist ecommerce mobile app development company focused exclusively on Shopify brands. Their approach blends design precision with deep Shopify expertise, creating apps that function as true extensions of a brand's identity. They are particularly well suited to high-growth DTC brands in fashion and cosmetics that want a native mobile app experience built to drive both sales and long-term customer loyalty — critical in a market where mobile app users demonstrably spend more and shop more frequently.

Key Services: Native iOS and Android app development for Shopify, brand-led UX and UI design, loyalty and retention features, mobile commerce strategy.

10. Ziffity

Website: ziffity.com

Headquarters: Texas, USA

Platforms: Adobe Commerce (Magento 2), Shopify Plus

Best For: Enterprise Magento custom development, B2B/B2C/D2C implementations, ERP integration

Ziffity is a top Magento contribution partner with over 30 certified Magento developers and 1,500+ sprint releases completed, focused on mid-market and enterprise clients. Their comprehensive understanding of B2B, B2C, B2B2C, and D2C business models makes them a versatile partner for complex platform builds, drawing on 25+ years of collective software development experience through their Aspire Systems affiliation.

Key Services: Adobe Commerce custom development, B2B ecommerce solutions, Shopify Plus implementations, ERP integrations, custom module development, and platform migration.

E-commerce mobile app development companies: A dedicated look

Mobile commerce is no longer a supplementary channel — it is the primary channel for the majority of global online shoppers in 2026. 76.5% of US smartphone users — roughly 164 million people — regularly use shopping apps, with 78% of consumers worldwide embracing mobile app shopping. Apps aren't just a better way to shop online; 74% of consumers worldwide now use retail apps while shopping in physical stores as well.

The business impact is equally clear. Mobile apps can generate up to 7x more revenue per user and contribute 40–50% of online sales for ecommerce brands. For merchants serious about growth, the question is no longer whether to build an app — it's who to trust to build it well.

When evaluating top ecommerce mobile app development companies, consider these factors:

• Platform expertise — does the agency understand your ecommerce backend (Shopify, Magento, custom API) and how to connect it to a mobile frontend without friction?
• Tech stack — native iOS/Android offers peak performance; cross-platform frameworks (React Native, Flutter) offer faster delivery and lower cost; PWAs sit in between. The right choice depends on your performance needs, audience, and budget.
• Design capability — the best mobile commerce apps are seamless extensions of brand identity, not generic templates with a logo dropped in.
• Post-launch support — apps require ongoing maintenance, OS updates, and feature iteration. Choose a partner with a structured long-term support model.

Among the companies in this list, Dinarys, AppJetty, Meetanshi, and Venn Apps have dedicated mobile ecommerce development practices. Atwix and Ziffity focus primarily on web platform and module development.

How to choose among ecommerce app development companies

The right choice depends on your platform, business model, and stage of growth:

For custom Shopify app development (public or private): Dinarys, Venn Apps, Mageworx

For Magento 2 / Adobe Commerce extension development: Dinarys, Atwix, Amasty, Mageworx, Mageplaza, MageComp

For custom ecommerce mobile apps (iOS & Android): Dinarys, Venn Apps, AppJetty, Meetanshi

For enterprise-grade B2B Magento implementations: Atwix, Ziffity, Dinarys

For ready-made extension libraries (faster deployment): Amasty, Mageworx, Mageplaza, MageComp

For multi-platform plugin development (Magento + Shopify + CRM): AppJetty, MageComp, Dinarys

For US and European market focus with strategic consulting: Dinarys

Final thoughts

By 2026, almost 70% of ecommerce companies will be employing AI solutions to customize experiences, forecast demand, and prevent fraud. The gap between merchants who invest in smart, custom-built apps and those who rely solely on generic plugins is growing wider by the quarter.

The right ecommerce app development company is one that understands not just your platform, but your business model, your customers, and your three-year growth trajectory. Building a custom Shopify app or bespoke Magento extension is an investment — and the returns depend entirely on whether the solution is engineered to solve a real business problem, not just tick a technical checkbox.

Among the top ecommerce app development companies covered here, Dinarys offers the broadest combination of capabilities: certified Shopify and Magento expertise, a strong mobile development practice, AI-ready personalization and integration capabilities, and a consulting-led approach that ensures every app and extension built delivers measurable commercial value. For businesses in the US and European markets looking for a long-term ecommerce development partner in 2026 and beyond, Dinarys is a standout first choice.