We’ve researched and ranked the best United States HTML5 mobile app development agencies that build sophisticated and high-quality apps that help brands drive more loyal customers and sales. Compare listings by past work, reviews, cost and size to pick the best fit for you.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Groove Jones
Award WinnerRecipient of a Best Design Award for outstanding work.Award-Winning AR / VR / XR / AI / WebGl Experiences
Groove Jones is an innovative technology company that specializes in creating AI/VR/AR software solutions for a wide range of industries, including advertising, entertainment, marketing, health, and training...
Top Services:
- VR/AR
- Software Development
- Mobile App Development
- Web Development
- Web Design
- Show more
- Location
- Dallas, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGroove Jones Services
Data sourced from the agency's DesignRush profileToyota Amazon MasterCard Intel HP Comcast FX Networks Samsung AT&T Ford
Groove Jones Reviews & Testimonials

VR/AR Review from Sam Rogers
The fine folks at Groove Jones really delivered with this project!See for yourself at https://4-h.org/clover/activities/rockets-to-the-moon/Our organization had worked with them before, but this was my first time...and my first time working with an AR project at all. Giving all the stars in all the categories isn't something I do much of, but in every way Groove Jones earned it.From the beginning, they got the intention and guided us through the choices needed to keep us within our fixed budget and immovable timeline. The team consistently delivered what we needed to get approvals from our internal and external stakeholders, and worked with us when we faced unexpected delays and technical surprises. We're just launched and already looking for the next opportunities to work with Groove Jones again! Totally professional, and totally fun :) They really made our team and our brand look good.

VR/AR Review from Amy Chao, CMP
The client had an exceptionally positive experience with Groove Jones. The agency delved into new technology boosting user experience, ensuring it aligned with the existing environment and was multi-channel compatible. Groove Jones in less than 90 days unveiled an interactive platform that was not only visually captivating but also had a striking impact. Throughout the journey, it remained communicative, promptly addressing modifications and infusing their unique insights. (verified via email)

VR/AR Review from Alan Fletcher
The client collaborated with Groove Jones on a challenging initiative, marked by a lofty yet vague objective and a pressing deadline. Discovered through online research and having no prior association, the collaboration swiftly took off. In merely three months, Groove Jones conceptualized and constructed a 20x16x10 Holodeck for the client's participation in the MWC event in Barcelona. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDigital Transformation: Empowering Your Future
Digital Transformation: Empowering Your FutureZiffity is an eCommerce agency that helps B2C and B2B brands build, transform, grow, and innovate their online presence by providing best-in-class digital solutions...
Top Services:
- Web Design
- Web Development
- eCommerce Development
- Mobile App Development
- IT Services
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- Location
- Plano, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZiffity Services
Data sourced from the agency's DesignRush profileKURT GEIGER OLAM CSN Franklin Empire DYNOJET FOXCHAPEL MW INDUSTRIES WESTERVELT GUIDANCE WALTHERS
Ziffity Reviews & Testimonials

Web Development Review from George Contorinis
We were impressed with their excellent organizational standards. Ziffity Solutions was successful in maintaining the site and replacing its framework, ensuring the project's success. The team used project boards and a ticketing tool to stay on track and efficiently address issues. Their strong Magento capabilities stood out, as did their effective processes.

Magento Review from Undisclosed
Their overall knowledge and understanding of Magento were impressive. The new site met the client's expectations. In fact, it was significantly better than their old website, especially in terms of design. Despite initial issues in communication, the Ziffity Solutions LLC team eventually solved them satisfactorily. They also followed best practices for development.

Web Design Review from Joshua Hudson
Our collaboration was productive all throughout. The project was successful. Ziffity Solutions LLC ensured the launch of the client's revamped site according to their needs. The external team was courteous and responsive throughout their partnership.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAward Winning Custom Development Experts | ERP Integration | Shopify/BigCommerce
QOLOS (pronounced "koh-lohs") is a U.S.-based software development company, specializing in building custom, high-performance digital solutions for brands that demand innovation. From complex ERP integrations to e-commerce solutions - you are in good hands with QOLOS...
Top Services:
- Web Development
- eCommerce Development
- WordPress Website Design
- UI/UX Design
- Software Development
- Show more
- Location
- Green Bay, Wisconsin
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQOLOS Services
Data sourced from the agency's DesignRush profileThermos Certco Stryker Louisville Vegan Jerky Dallas Morning News Dallas Police Department Bancroft and Sons Schneider National Cocktail Courier Restaurant Warehouse
QOLOS Reviews & Testimonials

WooCommerce Review from Amanda Viviano
We hired Qolos to build our local florist shop's website on WordPress and WooCommerce, and we couldn't be happier with the results. From the start, they took the time to understand our business and created a site that's not only beautiful but easy for our customers to browse and shop.The WooCommerce setup was seamless, our online ordering works exactly the way we needed it to. But what really sets Qolos apart is their ongoing monthly maintenance. We never have to worry about updates, security, or technical issues because they stay on top of everything. Any time we've had a question or a small change request, they've been responsive and professional.As a small local business, it means a lot to work with a team that genuinely cares about keeping our site running smoothly. Qolos has been a true partner, not just a vendor. Highly recommend them to any local business looking for reliable web design and maintenance!

Web Development Review from Sanjay Singh
I kept getting negative reviews about my app for technical glitches, heating issues, functionality, loading time, crashing, and more bugs. So, I reached out to QOLOS after going through 2-3 renowned review platforms. I explained my app issue to the team, and they did tremendous work with their mobile testing solutions. Also, I wanted to build a website for my app. They created a feature-rich and seamless website.

Shopify Review from Sarah Nesheim
Working with QOLOS was the best decision I have made in regards to scaling my business. They are professional, so creative, they communicate every step of the way and their pricing is fair for the highest quality work. The designer of our logo and website did it well and I am so impressed and proud of the final product! the designer listened and knew exactly what I wanted which made the process so simple. Seriously could not recommend QOLOS more!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Build Innovative Technology.
Applications and platforms proudly built here in the USA. We have assisted some of the most prominent global brands operating in complex and heavily regulated sectors in successfully launching software solutions that underpin their go-to-market strategy, ensuring a world-class customer experience...
Top Services:
- Software Development
- Mobile App Development
- UI/UX Design
- Product Design
- Creative Services
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKingsmen Digital Ventures Services
Data sourced from the agency's DesignRush profileEvolus Revance Merz Aesthetics PTC Kareo Microsoft Quiksilver Casamigos Tequila VantagePoint

EMERGE
Award WinnerRecipient of a Best Design Award for outstanding work.Digital Product Agency delivering Consumer-grade UX Design for B2B & Enterprise.
EMERGE is a top-rated UX Design Agency and Digital Product Consultancy and a trusted partner for B2B leaders across technology, healthcare, and manufacturing sectors. We specialize in driving business growth by crafting elevated, engaging digital products and services...
Top Services:
- UI/UX Design
- Product Design
- Design Services
- Software Development
- Mobile App Development
- Show more
- Location
- Portland, Oregon
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEMERGE Services
Data sourced from the agency's DesignRush profileMercedes Benz Intel McAfee AT&T Home Depot Nike Splunk HPE Stanford University UCSF
Our Creative Portfolio Smarter Results Across the Web.
Design Sketchers is a comprehensive digital marketing service provider, dedicated to transforming your vision of online presence into a remarkable reality. Our emphasis lies in cultivating robust customer engagement strategies, ensuring an impactful and immersive online experience for your audience...
Top Services:
- Web Development
- Graphic Design
- Logo Design
- Digital Marketing
- Content Marketing
- Show more
- Location
- Modesto, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $1000/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDesign Sketchers Services
Data sourced from the agency's DesignRush profileiDeal IT TrendLLC Your Logo Here Q Cycle Works, LLC
Design Sketchers Reviews & Testimonials
Veronica's Review Sourced from Google
I agree with the other review. This company claims that they can build websites and that they are located in Modesto, California which is not true. I have been calling them for weeks and so far no response. When I told them that I wanted a refund, they quiclky put some items on the website. They are very dishonest
Aristides's Review Sourced from Google
Been waiting for my refund I’m happy to see that you don’t really care for clients. Anyone looking to work with you will disappointed and the quality of humans you are thanks for understanding. Thanks for replying to all my emails and text messages. I’ll make sure everybody knows.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Related Mobile App Development Specializations in the US
- Android
- Application Modernization
- Consumer
- Cross-Platform
- eCommerce
- Educational
- Enterprise
- Financial
- Fitness App Development
- Games
- Government
- Healthcare
- iPad
- iPhone
- Mobile App design
- Publishing
- React Native
- Small Businesses App Development
- Social Network Apps
- Sports App Development
- Startup
- Travel App Development
- Wearables
- Windows
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