The Best Ecommerce App Development Companies (USA & Worldwide)

In 2026, just about every successful ecommerce business needs their own mobile app.

Mobile dominates a larger and larger share of ecommerce every year, and younger shoppers trend more towards using apps over websites. And that’s on top of the retention benefits of mobile apps - having a direct line to your customers, living on their home screen, is something that every brand should want.

But launching the perfect mobile app requires finding the perfect partner.

That’s what this article is for. We’ve scoured the internet, trawled through directories and reviews, to put together a list of the best ecommerce mobile app development companies to consider as you kick-start your project.

At-a-Glance: Ecommerce App Development Companies Compared

A Different Kind of Ecommerce Mobile App Development Company

You might think you need to hire an agency to build a custom app from the ground up. But the reality is, most ecommerce brands don’t need a custom build.

Your website already does 90% of what your app needs to do.

MobiLoud is a different kind of development company. Our approach focuses on getting you to a full-featured mobile app much faster, much more affordably, and with less overhead than custom development.

MobiLoud turns your existing ecommerce website into native iOS and Android apps. Rather than building a separate app from scratch, MobiLoud extends your current storefront so every feature on your website (your checkout, loyalty program, product search, live chat) works in the app from day one.

You’re not managing two separate systems. When you update your website, the app updates automatically. When you add a new product, run a sale, or redesign a page, it's already live in the app.

MobiLoud is a fully managed service - in that sense, we offer much of the same experience you get from a traditional agency. Only with the following advantages:

• ~4 weeks to launch, instead of 6 months+
• Cost starting from $799/month, instead of six figures+
• No lag between web changes and app updates (everything goes live immediately)
• Full consistency in the user experience across all your channels

If your website is already fast, mobile-friendly, and built to convert, you probably don’t need a whole new app built from the ground up.

To see what’s possible with MobiLoud, get a free preview of your app and we’ll walk you through the business case of turning your website into an app.

"There is no real business case for building an app from scratch for $1M+ when our mobile website is already good enough!"
– Thomas Moberg, Product Owner at Bestseller (Jack & Jones, Vero Moda, Only & Sons)

The Best Ecommerce App Development Companies in 2026

We compiled this list based on publicly available info, directory listings (e.g. Clutch), and our own experience based on 13+ years in the mobile app development industry. We’ve listed the key info you need to know about each company, along with a brief description, to give you an idea of whether or not they’re going to be a good fit for your project.

Appinventiv: For Large-Scale Custom Ecommerce Apps

• Founded: 2015
• HQ: Noida, India (with US offices)
• Min. project size: $25,000+
• Hourly rate: $25-$49/hr
• Clutch: 4.6/5 (90+ reviews)
• Specializations: Enterprise ecommerce, AI-powered personalization, multi-region apps

Appinventiv is one of the largest mobile app development agencies globally, with over 1,600 engineers. Their client list includes work with Adidas, IKEA, and KFC. Their ecommerce practice handles everything from custom marketplace builds to AI-driven personalization engines.

For ecommerce specifically, Appinventiv has built region-specific shopping experiences (including localized content, multi-currency checkout, and ERP integration workflows) at enterprise scale. They work primarily in Flutter and React Native for cross-platform development, with native Swift and Kotlin for iOS and Android when projects demand it.

At $25-$49/hr with a $25K minimum, Appinventiv sits at the value end of the custom development spectrum. The trade-off compared to US-based agencies is timezone overlap and the communication style typical of large offshore teams.

→ appinventiv.com · Clutch profile

ScienceSoft: For Enterprise Ecommerce with Complex Integrations

• Founded: 1989
• HQ: McKinney, Texas
• Hourly rate: $50-$99/hr
• Clutch: 4.8/5 (41 reviews)
• Team size: 750+ IT professionals
• Specializations: Magento, BigCommerce, ERP/CRM integration, PCI-DSS compliance

ScienceSoft has been in software development since 1989, giving them one of the longest track records on this list. Their ecommerce practice specializes in complex integration scenarios: connecting mobile apps to legacy ERP systems, multi-warehouse inventory management, and enterprise-grade payment processing.

With 22 years of ecommerce-specific experience, ScienceSoft is built for the kind of project where the app is one part of a larger digital transformation. They offer a dedicated ecommerce mobile app cost calculator on their website for project estimation.

ScienceSoft is a strong choice for brands running Magento, BigCommerce, or custom ecommerce platforms that need deep backend integrations alongside a mobile app.

→ scnsoft.com · Clutch profile

Big Human: For Design-Led Ecommerce Apps

• Founded: 2010
• HQ: New York, NY
• Min. project size: $100,000+
• Specializations: Brand-driven UX/UI, headless commerce, conversion-focused design
• Approach: Full-service (strategy, design, engineering)

Big Human is a New York-based digital product agency that combines UI/UX design with full-stack engineering. Their ecommerce work spans the entire lifecycle, from product strategy through post-launch optimization, with a particular strength in building shopping experiences that look and feel as premium as the brands behind them.

For ecommerce brands where the app experience is a direct extension of a luxury or design-forward brand identity, Big Human builds conversion-focused interfaces with deep integration into headless commerce architectures and custom checkout flows.

The premium positioning ($100K+) reflects the depth of their design process and US-based team. Big Human is the right partner for brands where the user experience needs to be genuinely distinctive, not templated.

→ bighuman.com

Cubix: For Mid-Market Ecommerce Brands

• Founded: 2008
• HQ: West Palm Beach, FL
• Min. project size: $25,000+
• Clutch: 4.9/5 (56 reviews)
• Projects delivered: 1,300+
• Specializations: React Native, Flutter, checkout optimization, geolocation features

Cubix has been building mobile apps since 2008, with over 1,300 projects delivered across startups, mid-market brands, and enterprises. Their ecommerce work covers native iOS and Android builds as well as cross-platform apps using React Native and Flutter.

For mid-market ecommerce brands (typically $1M to $20M in annual revenue), Cubix offers a balance of capability and cost. Their portfolio includes apps with geolocation-based features, optimized checkout flows, and inventory management integrations. With a US headquarters and global delivery team, they provide onshore project management with competitive development rates.

Cubix is a solid fit for brands that need a custom ecommerce app with moderate complexity, without the six-figure minimums that premium US agencies charge.

→ cubix.co · Clutch profile

TekRevol: For Multi-Region Ecommerce Apps

• Founded: 2018
• HQ: Houston, TX (with offices in Canada, Pakistan, UAE)
• Min. project size: $25,000+
• Hourly rate: $25-$49/hr
• Clutch: 4.9/5 (82 reviews)
• Specializations: Multi-language/multi-currency apps, marketplace builds, AI integration

TekRevol operates from offices in the US, Canada, Pakistan, and the UAE, which makes them a natural fit for ecommerce brands selling across multiple regions. Their development teams handle multi-language interfaces, multi-currency checkout, and region-specific compliance requirements as standard.

Despite being founded relatively recently (2018), TekRevol has scaled to 600+ completed projects. Their ecommerce work includes custom marketplace builds, AI-powered product recommendation engines, and branded shopping apps for DTC brands. They also run a startup accelerator program for early-stage ecommerce companies.

Brands launching in Middle Eastern, European, and North American markets simultaneously will benefit from their multi-region delivery infrastructure.

→ tekrevol.com · Clutch profile

Brainvire: For Magento/Adobe Commerce Apps

• Founded: 2000
• HQ: Dallas, TX
• Min. project size: $10,000+
• Clutch: 4.8/5 (260+ reviews)
• Team size: 4,500+ professionals
• Specializations: Adobe/Magento Gold Partner, SAP/Odoo/Salesforce integration, D2C marketplace builds

Brainvire is an Adobe/Magento Gold Partner with deep expertise in the Magento ecosystem. If your ecommerce operation runs on Magento or Adobe Commerce and you need a mobile app that integrates tightly with your existing backend (catalog rules, pricing tiers, complex product configurations), Brainvire has one of the most relevant portfolios in the space.

Their ecommerce work covers omnichannel experiences, D2C marketplace builds, and enterprise integrations. They also offer Magento PWA development for brands exploring that route alongside or instead of a native app.

Their accessible minimum project size ($10K+) means they work with growing brands, not only enterprises.

→ brainvire.com · Clutch profile

Droids on Roids: For Flutter Ecommerce Apps

• Founded: 2011
• HQ: Wroclaw, Poland (now part of Apadmi)
• Min. project size: $50,000+
• Hourly rate: $50-$99/hr
• Clutch: 4.9/5 (76 reviews)
• Specializations: Flutter, mobile commerce, fintech

Droids on Roids is a Poland-based mobile development studio with a standout reputation in Flutter development. Their open-source Flutter libraries are used by applications including Facebook and WhatsApp, which speaks to their depth of expertise with the framework.

For ecommerce brands that specifically want a Flutter-based app (single codebase for iOS and Android with near-native performance), Droids on Roids brings genuine technical depth. They've delivered 130+ apps across mobile commerce, fintech, health tech, and logistics. Their free initial project workshop lets you scope and estimate your ecommerce app before committing to a build.

They recently joined Apadmi, one of Europe's leading mobile consultancies.

→ droidsonroids.com · Clutch profile

Digis: For Budget-Friendly Cross-Platform Ecommerce Apps

• Founded: 2015
• HQ: Lviv, Ukraine
• Min. project size: $10,000+
• Clutch: 4.9/5 (85+ reviews)
• Team size: 200+ developers
• Specializations: Flutter, React Native, Ionic, Kotlin, Swift, Xamarin, ecommerce, fintech

Digis offers one of the lowest entry points for custom ecommerce app development, with projects starting at $10,000. Their team works across an unusually wide range of frameworks, which lets them recommend the best technology for each project rather than defaulting to a single stack.

Their ecommerce and fintech specialization means they understand payment processing, catalog management, and checkout optimization. Digis offers both project-based and staff augmentation models, so you can hire dedicated mobile developers to embed in your existing team if that's more practical.

For ecommerce brands with a $10K to $50K budget who want a custom cross-platform app without paying Western European or North American rates, Digis delivers competitive value.

→ digiscorp.com · Clutch profile

STRV: For Premium Ecommerce Brands Needing Enterprise UX

• Founded: 2004
• HQ: Los Angeles, CA / Prague, Czech Republic
• Min. project size: $100,000+
• Hourly rate: $100-$149/hr
• Clutch: 4.9/5 (60 reviews), top 1% globally
• Specializations: Design-driven product development, native iOS/Android, long-term product partnerships

STRV has been building digital products since 2004, with a client roster that includes Porsche, Barnes & Noble, Tinder, and The Athletic. Their approach combines deep design thinking with engineering execution.

For ecommerce, STRV excels at building the kind of app that becomes a genuine product in its own right. Their work with Barnes & Noble demonstrates their ability to handle complex product catalogs and content-rich shopping experiences at scale.

STRV's $100K+ minimum positions them at the premium end. This is the right partner for well-funded ecommerce brands that view their mobile app as a flagship product. They work best as long-term product partners rather than one-off development vendors.

→ strv.com · Clutch profile

How to Choose the Right Ecommerce App Development Partner

This step is crucial. Choosing the wrong partner for your app can set you back months, not to mention the cost and stress of watching time go by with minimal progress.

It’s not so much about the quality of the partner - it’s about their fit with your business. Most app development agencies are reputable and trustworthy. Most are capable. It’s about finding an agency that understands your brand, and aligns with what you’re trying to do.

Here’s how to make sure you find the right fit for your project, and for the ongoing partnership of maintaining your mobile app.

First: ask what you really need

Before you dive into the best ecommerce development agencies and start booking calls, ask yourself: do you really need a custom app?

If your site already works well on mobile, it’s fast, it’s conversion-optimized, then it’s probably good enough to power your app.

MobiLoud will help you go live for a fraction of the cost of a custom build, with much less technical lift, and guaranteed consistency across all your channels.

For most ecommerce brands, it’s just an easier and more effective way to get the same results you’d see from a custom mobile app.

Look for ecommerce expertise

If you are looking for a ground-up development agency, then make sure you find one that knows ecommerce.

You don’t want a company that's built 500 apps but none of them involve a product catalog, checkout flow, or payment processing. You want one that knows the ins and outs of shopping apps, what’s important and what’s not, and that has a real track record of helping ecommerce brands launch revenue-driving mobile apps.

Understand what happens after launch

An ecommerce app is never a one and done project. Mobile apps require constant maintenance and updates, whether it’s for new features, design tweaks, or OS version updates.

The most common reason that apps fall apart is not because they were poorly constructed in the first place, but because the brand didn’t consider the cost and work required to keep it running.

Make sure you’ve got a clear idea of how the agency will help you maintain the app, what it’s going to cost, and what kind of turnaround time there is when you need something changed or fixed.

Watch how they scope the project

A good partner asks hard questions: What ecommerce platform are you on? What third-party tools need to integrate? What does your team look like internally? They push back on features that don't justify the cost. 

If an agency agrees to everything on the first call and sends a proposal the next morning, they're often either underscoping the work or padding the estimate to cover unknowns.

Get specific on what the price includes

Fixed-price contracts look clean but come with padded estimates. Time-and-materials gives flexibility but requires active project management on your side. Some agencies exclude App Store submission, QA testing, or third-party integrations from the initial quote, then bill them as extras. Ask for a full breakdown before you sign.

What Does Ecommerce App Development Cost?

The cost to create an app can vary wildly. You could be looking at anywhere from $50,000 to $300,000+ for a custom app, depending on:

• Feature set
• Ease of integration with your website
• Quality of the development agency
• Location of the development agency

…plus other variables.

On top of that, you need to budget at least 15-20% of the original cost per year for recurring updates and maintenance.

It doesn’t have to cost that much, though. MobiLoud starts at $799 per month, with a one-time setup fee in the low-four figure range. (DIY ecommerce mobile app builders can cost less, but with more of your time needed to build and maintain the app).

Custom apps give you the absolute best performance, but the practical difference between this and an app powered by your website is often very little in reality. Slightly better performance doesn’t always mean more revenue, but it does mean a massive difference in cost, which many brands find is not worth it.

For a full breakdown of what it costs to build an app, with cost tables and additional costs to consider, see our guide to ecommerce app development costs.

What the Development Process Looks Like

If you hire a custom agency, here's the typical timeline for an ecommerce app.

Discovery and scoping (2-4 weeks). The agency audits your ecommerce platform, maps out integrations, and defines the feature set. You'll agree on technical architecture and get a detailed project estimate. This phase is worth taking seriously. Corners cut here show up as scope creep and budget overruns later.

UX/UI design (3-6 weeks). Wireframes first, then high-fidelity mockups for every screen: product pages, cart, checkout, account management, push notification flows. Expect 2-3 revision rounds. The better your feedback here, the fewer expensive changes during development.

Development (8-20 weeks). Engineers build the app, connect it to your ecommerce backend (product catalog, inventory, orders, payments), and integrate third-party tools like analytics, loyalty programs, and live chat. Cross-platform frameworks like React Native or Flutter can shorten this by building iOS and Android simultaneously. Expect regular demos or staging builds throughout.

QA and testing (2-4 weeks). Testing on real devices across iOS and Android versions. This includes checkout flow testing with real payment gateways, push notification delivery, deep link behavior, and edge cases like session expiry and network drops. Rushed QA is the single most common source of post-launch problems.

App Store submission (1-2 weeks). The agency prepares store listings and submits to Apple and Google. Apple's review process is stricter. First submissions sometimes get rejected for compliance issues, which adds a few days.

Post-launch. Monitoring crash rates, fixing bugs that real users surface, iterating based on analytics. Plan for an active stabilization period in the first 4-6 weeks.

The total timeline for a mid-complexity ecommerce app can be 4 to 8 months from kickoff to launch; potentially up to 12 to 18 months for enterprise builds with advanced features.

In comparison, MobiLoud lets you go live in around four weeks - build, testing & QA, app store submission included.

The Business Case for an Ecommerce Mobile App

Does your brand need a mobile app in the first place?

For most brands, the answer is yes. There’s a clear business case for it.

Apps make your existing customers more valuable. The convenience and availability of a mobile app gets people shopping more often, shopping for longer, and spending more over a long-term horizon.

App users typically generate anywhere from 3 to 15x more revenue than shoppers on the mobile web, with stronger engagement metrics, conversion rate and AOV.

You also get access to push notifications, a cost-free channel that provides direct access to your best customers.

Of course, it depends on how much you’re spending on it (spending $250K on a mobile app is a completely different business case vs spending $799 per month). And apps don’t make sense for every brand.

A mobile app makes sense when:

• You have repeat customers. A mobile app helps you get more of them. Subscription brands, consumables, fashion, beauty, and food are natural fits.
• Your mobile web traffic is 50%+ of total traffic. This shows your shoppers are already mobile-first, and the potential for app adoption is high enough to justify the investment.
• You're doing $1M+ in annual revenue. The aim is for your app to generate anywhere between 10-35% of your overall revenue. If your total sales are too low, the potential of your app is not enough to justify the cost. We typically recommend looking at an app only once you’re doing seven figures and above annually.

It doesn’t make sense (yet) when:

• You're still finding product-market fit. Fix your conversion funnel and build a customer base first.
• Your business is primarily one-time purchases with no repeat buying pattern. An app won't change that.
• Your mobile website is slow or broken. Fix the website first. An app built on a broken foundation carries those same problems.

The strongest signal is your repeat purchase rate. If 20%+ of customers buy more than once, a mobile app gives you a direct channel to keep them coming back. If that number is under 10%, invest in retention fundamentals first.

Final Thoughts

Less than 5% of ecommerce brands doing $1M+ in annual revenue have their own mobile app.

That gap exists, not because apps aren’t worth doing, but because most brands are unsure about how to get there.

Our list presents some solid options. But for most brands, particularly brands that have already poured an untold amount of money into their website, and want that investment to carry over, there’s a better way to build a mobile app.

That way is MobiLoud - seamlessly turning your existing site into a mobile app, for a fraction of the cost of custom app development.

MobiLoud is the best parts of an agency, and the best parts of software. And if you want to launch a high-ROI mobile app for an ecommerce store, it’s the best place to start.

Get a free preview to see what your store will look like as a mobile app.