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Top Design Agencies for Mobile App Development

7 of 21 design agencies ranked on evidence in the Q4 2026 edition.

Mobile app development covers applications built for phones and tablets, whether native to one platform, cross-platform from a shared codebase, or a web application wrapped for the stores. All three are sold under this heading and they have materially different costs, both to build and to keep running.

The recurring surprise for buyers is that shipping is not the end of the spend. Both stores change their requirements on their own schedule, and an app that is not updated will eventually stop being accepted or stop working. Ask what the maintenance arrangement is before comparing build quotes, because a lower build price with no maintenance path is not the cheaper option.

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Between them, the 22 design agencies on this page cover web development (20), web design (17), eCommerce (14) and UI/UX design (12). They also list work in United States of America. 22 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

7 of 21 design agencies ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

All design agencies 7 ranked SMEs 7 ranked

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Fyresite
Consumer Products & Services · Arts, Entertainment & Music · Hospitality & Leisure · Also in United States of America
Fyresite is a web and e-commerce agency in Tempe, Arizona, and a Shopify Plus agency. For more than 15 years it has built websites, apps and online stores for US businesses.
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Why #1: In business 15+ years · Shopify partner, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
CSI Media
Hospitality & Leisure · Social Media Marketing · Search Engine Optimization · Also in United Kingdom
Founded in 1998 by a family of founders, CSI Media has grown into a UK agency for websites and software. It began with a very small team and now employs more than 30 people.
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Why #2: Founded 1998 · Team of 30+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
D.Workz Interactive
Web Development · Web Design · UI/UX Design · Also in United States of America
D.Workz Interactive, which trades as Dworkz, is a design and development firm in San Francisco.
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Why #3: Founded 2004, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Fresh Tilled Soil
Web Development · Web Design · UI/UX Design · Also in United States of America
Boston is home to Fresh Tilled Soil, a user experience and interface design firm.
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Why #4: Founded 2006, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
EL Passion
Arts, Entertainment & Music · Web Development · Web Design · Also in Poland
EL Passion is a product design and software development agency that works in agile sprints on web apps, mobile apps and AI projects.
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Why #5 (shared): In business 13+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Fireart Studio
Consumer Products & Services · Web Development · Web Design · Also in United States of America
Product design and engineering for startups and established companies is the work of Fireart Studio, which has been active since 2013.
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Why #5 (shared): Founded 2013 · Boutique, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
LLC "Main Code"
Search Engine Optimization · Web Development · Web Design · Also in Kyiv
LLC "Main Code" is the former name of a software agency that ceased to exist in 2020 and relaunched as Spaceberry, a UI and UX design studio.
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Why #7: Founded 2016, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
Adchitects
Social Media Marketing · Web Development · Web Design · Also in Poland
Adchitects is a digital product design agency that handles a project from research through to launch.
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BD
Bachoo Design Studio
Web Development · Web Design · UI/UX Design · Also in Ukraine
Bachoo Design Studio is a web design and development agency that builds brands, websites and digital products.
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BuildThis
Web Development · Web Design · MySQL · Also in United States of America
BuildThis is an in-house team of web designers, developers and digital marketers based in Chicago.
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Convertiv
Consumer Products & Services · Web Development · Web Design · Also in United States of America
Convertiv is a B2B digital consultancy that prepares marketing, revenue and operations teams to use AI across their go-to-market work.
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Deltacron
Consumer Products & Services · Business Services · App Development
Early-stage companies and smaller firms make up most of the clientele of Deltacron, an agency that designs and builds digital products.
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DigitalUs
Arts, Entertainment & Music · Advertising & Marketing · Hospitality & Leisure · Also in Florida
DigitalUs is a web design and digital marketing agency in Orlando, Florida.
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Future Profilez India Pvt. Ltd.
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in India
An AI-powered web design and app development company in India, Future Profilez India Pvt. Ltd.
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Grid Branding Solutions Limited
Web Development · E-Commerce Development · eCommerce · Also in Oxford
Grid Branding Solutions Limited is a Kenyan agency that helps organisations and products get noticed through website design, branding, events and strategy.
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IPIX Technologies
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in United Arab Emirates
IPIX Technologies is a software company with offices in the United Arab Emirates and India.
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LAYERSSHOW
Web Development · E-Commerce Development · Business Services · Also in Poland
LAYERSSHOW is an interactive agency and software house in Warsaw. It writes code for web portals, business applications and online shops, and looks after the servers they run on.
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SCR® design
Web Development · Web Design · UI/UX Design · Also in Slovakia
SCR® design is a user experience and web design agency that belongs to the SCR group. It designs web and mobile products and works on improving the interfaces of existing software.
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Superskrypt
Web Development · Web Design · UI/UX Design · Also in Poland
Superskrypt is a digital design agency in the centre of Warsaw, Poland. It works alongside Podpunkt, so technology and design are handled together.
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Uncorked Studios
Web Development · Web Design · UI/UX Design · Also in United States of America
Uncorked Studios was a Portland-based product design and strategy studio.
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On record: Small team
Joined since the Q4 2026 edition. These listings arrived after the edition was ranked; they get a place at the next one (January 2027).
Grind Web Studio
Web Development · Web Design · UI/UX Design · Also in Bulgaria
Shopify is the specialism of Grind Web Studio, which designs online stores, rebuilds them on new platforms and keeps them evolving.
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Fixmywebs
Business Services · Financial Services · App Development · Also in California and United States
Based in San Leandro, California, Fixmywebs is a studio that presents its work as a single place for businesses to handle most of their visual and digital needs.
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Top Design Agencies for Mobile App Development

Fyresite

CSI Media

D.Workz Interactive

Fresh Tilled Soil

EL Passion

Fireart Studio

LLC "Main Code"

Adchitects

Bachoo Design Studio

BuildThis

Convertiv

Deltacron

DigitalUs

Future Profilez India Pvt. Ltd.

Grid Branding Solutions Limited

IPIX Technologies

LAYERSSHOW

SCR® design

Superskrypt

Uncorked Studios

Grind Web Studio

Fixmywebs

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