We’ve researched and ranked the best 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.
Best HTML5 App Developers
14 Companies-Rankings updated: September 03, 2026
All mobile app development firms on DesignRush have been assessed for their expertise, portfolio, and verified client reviews. Some listings may be paid.
Decades of Experience, Building Platforms for the Worlds Top Brands - USA & Canada
A leading mobile app development company with 18+ years of experience, Essential Designs offers expertise in planning, wireframing, design, code, testing, and deployment. Led by a team of 32+ senior developers, it has driven measurable growth for clients like Honeywell, AWS, and Shopify...
Top Services:
Software Development
Mobile App Development
UI/UX Design
Web Development
IT Services
Show more
Location
Vancouver, Canada
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
21 Projects Listed
Essential Designs Services
Software Development
Mobile App Development
UI/UX Design
Web Development
IT Services
Web Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Teck
Honeywell
BMW
Lifeguard
Government of Canada
Data sourced from the agency's DesignRush profile
Essential Designs Reviews & Testimonials
Chris Bailey Director at BAILEY SERVICES LTD
5.0★
Web Development Review from Chris Bailey
I engaged their web-development team to rebuild and modernize our company's manufacturing website, and the experience has been exceptional. From the outset, communication was clear and responsive: they took time to understand our industry-specific compliance needs and translated them into a site structure that is clean, secure, and easy to navigate. Delivery was on schedule, and the final result exceeded expectations pages load quickly, the design feels professional and trustworthy, and the content layout supports clarity for both clients and regulators.In addition, the team proactively suggested helpful enhancements: mobile optimization, streamlined navigation, and improved documentation pages all of which have already resulted in noticeably increased user engagement and lower bounce rates. They handled feedback promptly and implemented corrections without fuss, making the collaboration smooth and efficient.Overall, this project added significant value to our online presence, giving us a polished, modern website that accurately reflects our manufacturing standards and commitment to quality. I would gladly work with them again and recommend their services to anyone seeking reliable web development for regulated-industry clients.
Kendall MacNabb Director of Operations at Sea to Sky Rental
5.0★
Web Development Review from Kendall MacNabb
We needed to have a custom guest communication platform built, due to our custom workflows at the business, connecting our team members with text, images, buildings and daily project tasks. Essential Designs was able to hit the exact deadline we had, to the day, and completed on budget. We continue to add on features, it's a good relationship.
Emilie H Technical Product Manager at Foundry Brands | Digital Strategy | Agile and Development Leadership | Helping Brands Reach The Next Level at Foundry brands
5.0★
Mobile App Development Review from Emilie H
The Essential Designs team's proactive approach to acknowledging their strengths and weaknesses not only enhances their performance but also fosters a culture of continuous improvement. Their fearlessness in tackling challenges is matched by their ability to successfully fulfill even the most demanding requirements. Beyond mere competence, the team's innovative spirit and enduring passion make them valuable and committed long-term collaborators. Their dedication to excellence sets them apart, ensuring a dynamic and mutually beneficial partnership.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Digis is a Software Development company with a team of 200+ professionals dedicated to Custom Development (Web & Mobile) and design. We have a wealth of experience across several industries, particularly in Education, Healthcare, Fintech, E-Commerce, Media & Entertainment, GIS and Automotive...
Top Services:
Staff Augmentation
Web Design
Web Development
Mobile App Development
IT Services
Show more
Location
New York City, New York
Number of Employees
100 - 249
Average Hourly Rate
$39/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
22 Projects Listed
Digis Services
Staff Augmentation
Web Design
Web Development
Mobile App Development
IT Services
Software Development
Managed Services
Cybersecurity
Product Design
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
BlaBlaCar
PWC
EDP
HubSpot
SKF.
Huma
Otoqi
ZEWAY
Data sourced from the agency's DesignRush profile
Digis Reviews & Testimonials
Wladimir Wolinski Project Manager at Seven Tips UG & Co. KG
5.0★
UI/UX Design Review from Wladimir Wolinski
Communication was smooth either through our teams communication channel or with the project manager via email. We were in daily contact with the UX/UI designer in form of dailies or when we had to clarify some questions. With the project manager, we had a short conversation every 2 weeks to clarify all possible questions.We personally love to work in a very process-oriented way. Because when we understand how to do something, we usually know how the end result can look like. With Digis, we also had the feeling that they knew what they were doing and how to do it. Every next step was planned from the beginning. If something didn't work in line with our processes, we could readjust it.We were basically satisfied with everything.
Michael Wilson Co-Founder at Part Swap
5.0★
Website Redesign Review from Michael Wilson
Digis is redesigning our website to a magento based platform to migrate from a Wordpress based platform. Key deliverables include a full discovery document to determine and outline the scope of the work and the magento platform with custom development to fit our needs.Everything has been delivered on time. Danila our project manager has great communication and always responds in a timely manor. We always receive clear explanations and detailed time logs for the work that is done.
Gina Levy CEO at KindraConnect
5.0★
Mobile App Development Review from Gina Levy
Both the developer and tester have exceeded expectations. Their performance is excellent. Together they eliminated bugs, introduced new features, and ensured that the app is working without problems. Previously, we had many complaints in the app store. Since working with this developer and tester, these complaints about the app functioning and bugs have disappeared.The time zone different is sometimes challenging, since we are in California and they are in Europe.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Award WinnerRecipient of a Best Design Award for outstanding work.
Mobile & Web Development Company
Our commitment is to deliver exceptional App Development solutions that drive business growth. With over 13 years of experience, Surf crafts native and cross-platform apps tailored to your goals. Our extensive expertise ensures success in even the most complex projects, from strategy and design to launch and...
Top Services:
Mobile App Development
Software Development
Web Development
Location
Wilmington, Delaware
Number of Employees
100 - 249
Average Hourly Rate
$49/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
10 Projects Listed
Surf Services
Mobile App Development
Software Development
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Societe Generale
KFC
Burger King
Mars
The Home Depot
Dodo pizza
SAP
TAG
Twim
Henderson
Data sourced from the agency's DesignRush profile
Surf Reviews & Testimonials
Ann Jerovski Bussiness director at SAP
5.0★
Mobile App Development Review from Ann Jerovski
The goal was to create an AR application that helps third-party clients see the entire business process.The end deliverable was a success. Third-party clients were able to see the whole business process and decide if they needed solutions from the client. The communication with the client was smooth. Overall, the team made the corrections and implemented solutions to enhance the client's services.
Anne Diganova Business director at Love Republic
5.0★
Mobile App Development Review from Anne Diganova
A women's clothing retailer hired Surf to assist in the development of their app. Thanks to Surf’s efforts, the client was able to release the app on Black Friday, saving 40% of their budget. The team was communicative, responsive, and professional throughout the engagement. They worked in a very organized way, taking into account all business needs.
David Dilson Delivery manager at Perfume & Cosmetics Company
5.0★
Mobile App Development Review from David Dilson
Thanks to Surf's efforts, they successfully created a functional app. As a result, the volume of downloads was over 500 thousand with great ratings in the app store. Moreover, the conversion rates were excellent. Their communication skills and expertise in the industry stood out in the partnership.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Level Level is a high-end WordPress agency from Rotterdam. We engineer complex, large-scale platforms for enterprise and public sector clients. No templates, no shortcuts. We deliver bespoke, secure solutions with an unwavering focus on accessibility (WCAG 2.2), performance, and clean code...
Top Services:
WordPress Website Design
Web Development
Software Development
eCommerce Development
UI/UX Design
Show more
Location
Rotterdam, Netherlands
Number of Employees
Under 49
Average Hourly Rate
$149/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
18 Projects Listed
Level Level Services
WordPress Website Design
Web Development
Software Development
eCommerce Development
UI/UX Design
IT Compliance Solution
Web Design
Digital Strategy
SEO
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
FD Mediagroep
ICTU
IFFR (International Film Festival Rotterdam)
Discriminatie.nl
ABN AMRO
Business Insider
Cordaid International
Brussels Airport
Fietsersbond
Gemeente Almere
Data sourced from the agency's DesignRush profile
Level Level Reviews & Testimonials
Jarik Oosting Review from Google
5.0★
Jarik Oosting's Review Sourced from Google
Very good WordPress agency. They do what they say and do not sell unnecessary things. Planning is realistic and budgets are also well worked with. Definitely recommended.
Nic. Oud Marketing Review from Google
5.0★
Nic. Oud Marketing's Review Sourced from Google
LevelLevel provided us with the right guidance during the construction of our new responsive website. Very satisfied with the delivery and excellent ranking results in a short time.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
VerifiedVerified by the DesignRush team for authenticity and credibility.
Precise Software Solutions
Exaud builds lasting relationships by delivering custom solutions for Fortune 1000s and global brands like Samsung, Google, and Audi. Market-leading insight positions us as the clear choice in digital innovation, with proven results across App Development and complex software projects...
Top Services:
AI Development
IoT
Mobile App Development
Software Development
Wearables
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Location
Ermesinde, Portugal
Number of Employees
50 - 99
Average Hourly Rate
$70/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
Exaud Services
AI Development
IoT
Mobile App Development
Software Development
Wearables
Blockchain
DevOps Consulting
Staff Augmentation
Cybersecurity
IT Compliance Solution
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Anoto
Samsung
NDrive
Blaupunkt
Audi
Essent
Facebook
Google
Nissan
Presto
Data sourced from the agency's DesignRush profile
Exaud Reviews & Testimonials
Dmitriy Ksendzovsky CEO at Software Consulting
4.8★
Educational Review from Dmitriy Ksendzovsky
I have had an positive experience working with Exaud on expanding and maintaining several software products. Our software consulting technology stack is quite wide, from embedded development to mobile game dev, making it challenging to find the right partner knowledgeable in a number of these areas. The Exaud team is professional, flexible and continues to provide the development expertise we require to fulfill our project needs on time and budget.
Stacy McCarthy President at Learning Design Network, Inc.
4.8★
Educational Review from Stacy McCarthy
Learning Design Network has been providing expert learning programs for 20 years, helping nearly 1 million employees worldwide achieve professional success. COVID prompted us to digitalize our product and we chose Exaud as our technology partner. Together, we developed a comprehensive digital tool for customized training and effortless collaboration in a 3D digital environment. The platform leverages our expertise and Exaud's technical capabilities, delivering a high-quality user experience.
Tim Martin Software Architecture and Engineering at FS Studio
5.0★
Enterprise Review from Tim Martin
We have a very long history of working with Exuad, which in itself is about the best endorsement you can have. We have been working with them on projects for going on 10 years and they are our go to external dev team. Georg and team are not only very talented they are highly ethical. To me the later point is the most important, you can trust that they will provide high quality work and you can absolutely trust them on the business side.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.
AI & Cloud Software Engineering
Flyaps is an AI & cloud engineering company headquartered in New York, with delivery teams in Ukraine and Poland. For 12+ years, we've helped early-stage startups scale into unicorns and modernized legacy businesses into IT leaders...
Top Services:
Software Development
AI Development
IT Services
DevOps Consulting
Cloud Consulting
Show more
Location
New York City, New York
Number of Employees
Under 49
Average Hourly Rate
$49/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
9 Projects Listed
Flyaps Services
Software Development
AI Development
IT Services
DevOps Consulting
Cloud Consulting
Web Development
Staff Augmentation
Web Design
Business Consulting
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
NetSpark IP & Telecom
MyersBiz Net
Yaana
Airbyte
Nextgen Clearing
JOIN
Relocate
Shoelace Wireless
Data sourced from the agency's DesignRush profile
Flyaps Reviews & Testimonials
Andrew Stetsenko Founder at GlossaryTech, backed by Dice
5.0★
Python Django Review from Andrew Stetsenko
We partnered with Flyaps to build the GlossaryTech Chrome Extension from scratch, including the backend for tech terminology analysis. The goal was to help recruiters, sales professionals, and other non-technical specialists in IT quickly understand the technical terms they encounter every day.The first release shipped back in 2017, long before today's AI tools were available off the shelf. Flyaps built a custom tokenization layer on top of NLTK library to resolve the ambiguity problem - distinguishing "Go" the language from "go to the shop," or "Swift" the framework from the adjective, while also correctly recognizing multi-token terms like "Ruby on Rails" or "Amazon Web Services". It was a pragmatic, precise solution that made the extension genuinely usable from day one.The outcomes have validated that early bet. GlossaryTech now holds "Featured" status in the Chrome Web Store, has passed 25,000 downloads, and consistently serves 10,000+ weekly active users and 2,000+ daily active users. For a niche professional tool, that level of organic, sustained engagement is rare - and it traces directly back to the technical foundation Flyaps put in place.Beyond the engineering, what stood out was how Flyaps engaged with the product itself. They contributed to architecture decisions, flagged edge cases early, and treated scope conversations with honesty rather than upsell. Communication was straightforward throughout, deadlines were met, and the codebase has held up well as we've extended the product over time.I'd recommend Flyaps to anyone looking for a partner who combines solid engineering with genuine product thinking. They've been central to GlossaryTech's success and continue to be a team we trust.
Dariia Ryzhova Product Manager at Nextgen
4.7★
Software Development Review from Dariia Ryzhova
Our collaboration with Flyaps has lasted for several major projects, of which I personally worked with them on two. I am very satisfied with the level of expertise (both technical and domain), the involvement and responsibility of the teams, and the quality of delivery. We successfully brought 2 major products to life together. Flyaps teams have diverse specializations, so I had the opportunity to attract consultants from different fields: software developers, including high-level architects, DevOps, QA, and business analysts.The teams have a modern technology stack and are experienced in Agile development. This allowed for smooth integration with internal teams and processes. It is also important to note that Flyaps provides technical consulting on demand, and this was very valuable service as well. Overall, I can recommend working with Flyaps as a reliable and high-quality partner.
ТОВ ХОТНАЙТС Review from Google
5.0★
ТОВ ХОТНАЙТС's Review Sourced from Google
Flyaps delivered outstanding results for our e-commerce store! They built a visually stunning and high-performing website that perfectly captures our brand. Since launching, our site speed has improved by over 60%, and we've seen a noticeable increase in our conversion rate. Their team's technical expertise is top-notch, and the new admin panel they created has made managing our operations so much easier. I am happy to recommend this team of professionals.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
SEEDIUM builds & scales web/mobile products globally: full-cycle development & team augmentation
Seedium provides full-cycle development and team augmentation services for startups and SMBs around the world. We focus on progressive mobile & web application development, marketplaces, serverless and microservices solutions, high-load projects, and SaaS platforms...
Top Services:
Software Development
Mobile App Development
AI Development
Web Design
Staff Augmentation
Show more
Location
Tallinn, Estonia
Number of Employees
Under 49
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
Seedium Services
Software Development
Mobile App Development
AI Development
Web Design
Staff Augmentation
Software Testing
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HerHeadquoter
Bunch
Smarter Contact
Welcome Renovation
Solo
Sport Stars
Data sourced from the agency's DesignRush profile
Seedium Reviews & Testimonials
Volodymyr Andrushenko CRO at Genius Software
5.0★
Web Development Review from Volodymyr Andrushenko
Collaborated with Seedium on developing a B2B SaaS platform. The team was very professional and delivered the project on time. They were quick to understand our needs and provide aperfect solution. We would highly recommend Seedium as a reliable software development partner.
Iryna Seleman Engagement Manager at Cortance
5.0★
Web Development Review from Iryna Seleman
Seedium didnt just complete the tasks, they genuinely cared about the success of our project. They proposed valuable solutions and improvements that made the original idea even stronger. The work was consistently high-quality, and every feature was delivered to our expectations and standards. We could rely on Seedium completely without micromanaging, as they took full ownership of their responsibilities.
Khrystyna Sliana Digital marketing manager at Red Jumpers
5.0★
Web Development Review from Khrystyna Sliana
The Seedium team always found the best solutions to our requests and was flexible in their work. They were a perfect fit for our requirements. Working with them, we were confident in delivery and quality. We will definitely keep working with them on our next projects.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We design & develop web and mobile applications. Specializing in outsourcing and AI integration
We are ready to build your project in the digital world. We will help you through the development process from initial analysis to successful launch. We design, build and launch digital products on mobile, web, and connected platforms...
Top Services:
Software Development
AI Development
Staff Augmentation
Mobile App Development
CRM Consulting
Show more
Location
Prague, Czech Republic
Number of Employees
50 - 99
Average Hourly Rate
$79/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
2 Projects Listed
Moravio Services
Software Development
AI Development
Staff Augmentation
Mobile App Development
CRM Consulting
ERP Consulting
DevOps Consulting
Big Data Analytics
IT Services
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
JLL
CENTRL
MALL
STARDIO
Delivery Hero
Notino
Wallmark
Hyundai Transys Czech
Czech Tourism
Economia
Data sourced from the agency's DesignRush profile
Moravio Reviews & Testimonials
James Leonard Ehrlich, DVM CTO & CEO at VCPR.ORG
4.8★
Web Development Review from James Leonard Ehrlich, DVM
I wanted to outsource front end development while maintaining back end services myself.They started with existing React SPAs, cleaned them up, found and removed bugs, improved user interaction, made clear requests for new endpoints which I implemented and they tested and used.The time difference between my office in eastern USA and theirs in Moravia worked well, as we could meet at their afternoon/my morning and I had the rest of the day to deal with back end or questions they might have.Their professionalism and competency were impressive.I will continue working with them, for years, I hope, in maintenance mode or when we need to expand features.
Michal Konopa Head of IT at NonStop Consulting
5.0★
CRM Development Review from Michal Konopa
New CRM system was successfully rolled out and data was migrated from our old system.Everything was delivered on time. Always willing to adapt to changing needs of the project.
Miroslav Cina Review from Google
5.0★
Miroslav Cina's Review Sourced from Google
I had experience for few projects as QA manager and I need to say that Moravio is very progressive company in IT industry.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
JetBase helps startups and enterprises transform bold ideas into scalable digital products. From MVPs to SaaS platforms, we build software that drives growth, strengthens retention, and delivers measurable business impact with clarity, speed, and long-term value...
Top Services:
Software Development
eCommerce Development
Mobile App Development
Web Development
DevOps Consulting
Show more
Location
Sheridan, Wyoming
Number of Employees
Under 49
Average Hourly Rate
$45/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
9 Projects Listed
JetBase Services
Software Development
eCommerce Development
Mobile App Development
Web Development
DevOps Consulting
UI/UX Design
Web Design
AI Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Engineered in the US based, delivered by a global team with more than 9 years of enterprise engineering experience and 800+ production systems behind us...
Top Services:
AI Development
Mobile App Development
Software Development
IT Services
Staff Augmentation
Show more
Location
Reston, Virginia
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
1 Project Listed
TechTIQ Inc. Services
AI Development
Mobile App Development
Software Development
IT Services
Staff Augmentation
DevOps Consulting
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Virtual Technology Office - An extended execution arm of a CTO.
Facing challenges to scale up tech? Have a biz/tech requirement but no bandwidth to execute? Too many tech projects eating up your time to focus on core business? Connect with us. We provide fractional CTO services in build-operate-transfer models...
Top Services:
IoT
Software Testing
AI Development
Blockchain
Mobile App Development
Show more
Location
Bengaluru, India
Number of Employees
50 - 99
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
OpenTurf Technologies Services
IoT
Software Testing
AI Development
Blockchain
Mobile App Development
Software Development
VR/AR
Staff Augmentation
Managed Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Our Model Is Much Different And Way Better Than the Usual Offshoring Nonsense.
Our Yourshore model is intentionally designed to give you the very best remote engineering solution that solves for all the usual pain points that plague traditional offshore vendors...
Top Services:
Software Development
HR Outsourcing
Location
Menlo Park, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
TurnKey labs Services
Software Development
HR Outsourcing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
We create digital brands, products and experiences that actually work.
Ember Design is a Hamburg-based UX/UI design agency specializing in digital branding, product management, and technology solutions. We excel at creating immersive and effective user experiences, offering services ranging from brand development to web development. Our commitment to innovation and creativity...
Top Services:
UI/UX Design
Design Services
Web Design
Branding
Product Design
Show more
Location
Hamburg, Germany
Number of Employees
Under 49
Average Hourly Rate
$140/hr
Minimal Budget
$25,000 - $50,000
Ember Design Services
UI/UX Design
Design Services
Web Design
Branding
Product Design
SEO
Logo Design
Digital Strategy
Web Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts