Enterprise UX and product design with a strong brand side.
Clay designs and builds mobile apps, web apps, and enterprise software, combining UX research and product strategy with visual design and brand thinking. It works with everyone from early startups to Fortune 100 companies and treats brand and product as a single problem rather than two.
Services
App and UI/UX design, web design and development, product strategy, brand identity, design systems, motion.
Lean, senior app and product design for tech teams.
A small, fully remote senior team designing apps and digital products for startups and growth-stage companies. It works fast and caps how many clients it takes on at once, and shows up on 2026 app-design rankings for pairing speed with senior-level attention.
Services
Product and app design, UI/UX, brand strategy.
Notable work
No public named-client list, so this is one to assess directly through the portfolio.
Ideal client
Lean tech teams that want senior app-design attention without agency overhead.
Veteran global product and experience design firm.
Founded in 1969 and famous for the early design language of Apple and the Sony Walkman, frog is a global creative consultancy now part of Capgemini Invent. It spans UX, service, product, and industrial design, applying a human-centered approach across digital and physical experiences at enterprise scale.
Services
Product design and delivery, UX and service design, strategy, industrial design, engineering.
Notable work
Historic product design for Apple and Sony, and today large-scale product and experience programs across industries.
Ideal client
Enterprises that want deep product design tied to broader business transformation.
Key facts
Founded 1969 · San Francisco HQ, studios including New York, London, Munich, Bangalore, Singapore · Part of Capgemini Invent.
Brooklyn-born design and technology company built for scale.
Founded in Dumbo in 1999, Huge builds digital products and experiences for large, ambitious brands, blending design, technology, and increasingly AI. It runs a global operation and works across product, platform, and marketing.
Services
Product and UX design, digital platforms, engineering, strategy, AI.
Notable work
Early web and product work for IKEA, JetBlue, CNN, Pepsi, and Target.
Ideal client
Large brands that need digital products designed, built, and run at scale.
Key facts
Founded 1999 · Brooklyn HQ, global offices · Owned by AEA Investors.
Design-and-development studio focused on shipping app products.
thoughtbot is a product studio that designs and builds web and mobile applications, pairing product and UX design with strong engineering. It works with startups and established teams alike and is well known in the developer community for its open-source work and its lean, validation-first approach to new products.
Services
Product design, UX, mobile and web app development, product strategy, MVP validation.
Notable work
A long track record of shipped web and mobile products across startups and enterprises.
Ideal client
Teams that want design and engineering together, especially for MVPs and new products.
Key facts
Remote-first, US-based (roots in Boston) · Independent.
Utility is a NYC studio built by creatives and technologists, focused on mobile and web apps. It pairs product design and UX with engineering to ship polished apps for both Fortune 500 brands and funded startups, with a stated obsession over design and functionality detail.
Services
Mobile app design and development, web and product development, UX/UI, digital strategy, iOS and Android.
Notable work
Apps and products for Airbnb, the NBA, Samsung, Verizon, DirecTV, and Shake Shack.
Ideal client
Brands and startups that want a design-led partner to build and ship an app.
Design and engineering team building web and mobile products.
STRV is a digital product development company that designs and builds web and mobile products for both iconic brands and well-funded startups, keeping design and engineering under one roof. It leans premium and is known for clean, scalable code alongside its product design.
Services
Product and UX/UI design, mobile and web development, AI development, product strategy.
Notable work
Product work for Porsche, Tinder, Barnes & Noble, The Athletic, and Barry's.
Ideal client
Brands and funded startups that want design plus serious engineering in one team.
Key facts
US and Europe, offices including Los Angeles, New York, and Prague · Independent.
Instrument is an independent design and technology agency spanning digital products and brand experience. Long known as Nike's digital partner, it combines the strengths of a creative agency, an engineering firm, and a consultancy to build and scale digital experiences.
Design and technology studio building products from zero to launch.
Founded in 2011, Bakken & Bæck is a European design and technology studio that designs and builds digital products with ambitious companies, from early concept to launch. It has a strong emerging-tech bent, including conversational AI and decentralized platforms.
Services
Product design, UX/UI, engineering, emerging-tech and AI product development.
Notable work
Product work with Coinbase and conversational-AI work with Sierra, among others.
Ideal client
Companies building new digital products or ventures, especially with an emerging-tech angle.
Key facts
Founded 2011 · Oslo, Amsterdam, Bonn, London · Independent.
Digital product agency known for high-scale apps and sites.
Work & Co designs and builds digital products and services, prototyping in code and shipping production-grade builds with senior people staying hands-on. It is known for apps and platforms used by millions.
Services
Product design, UX, mobile and web app development, prototyping, digital strategy.
Notable work
The MTA's live NYC subway map, plus digital products for Apple, Google, Nike, IKEA, and Mailchimp.
Ideal client
Companies that need a production-grade app or platform, not just a design comp.
Key facts
Founded 2013 · Dumbo, Brooklyn, with global offices · Owned by Accenture (since 2024).
Founding, location, ownership, team model, and focus — the things that actually change your rates and process. No rankings, because a boutique and a global consultancy are not competing for the same brief.
Boutique Studio ConsultancyBudget tier reflects typical starting engagement size, not quality — none of these studios publish rates.
The buyer's guide
Four kinds of studio, one label
Everyone here calls themselves an app studio. They are selling four different things, and the difference decides your budget, your timeline, and how much work lands back on your own team.
Design-led studios that also build
Design leads, engineering follows, and the studio ships to the store.
Utility,
Work & Co, and
Clay sit here in different registers. You get interface craft and a finished product, and you pay for both.
Engineering-led studios with design attached
Development is the centre of gravity and design is a genuine practice rather than a garnish.
thoughtbot and
STRV work this way. Strong when the technical problem is the hard part, and generally more pragmatic than expressive about the interface.
Global consultancies
frog inside Capgemini and
Huge under AEA Investors bring research depth, multi-market delivery, and process built for organisations with procurement departments. They also bring long onboarding, central rate cards, and the widest gap between the people who pitch and the people who deliver.
Boutiques and small senior teams
Mission Control and
Bakken & Bæck run small enough that seniority is structural rather than promised. Faster and more direct, with finite capacity that a large multi-platform programme will strain.
Briefing across these without adjusting produces proposals that cannot be compared. An engineering-led studio and a global consultancy quoting the same app will differ by an order of magnitude, and both numbers may be correct for what they are describing.
Reading an app portfolio
What case studies don't show
App portfolios are unusually easy to make look good and unusually hard to read. Some things worth checking before the first call.
Did it ship, and is it still live?
Search the App Store and Google Play for the app in the case study. A surprising number were never released, were pulled, or belong to companies that no longer exist. Check the last update date — an app not updated in two years tells you the relationship ended.
Who else worked on it?
Large apps have many contributors. A studio may have designed one flow of a product it presents as a whole. Ask directly which parts they owned and whether they handled engineering, design, or both.
Are the people still there?
The team that made the work you admire may have left. If a specific project is your reason for calling, ask who led it and whether they are still on staff and available.
How many states are shown?
Portfolios show populated happy paths. Ask to see empty states, error handling, loading behaviour, and settings screens. Studios that have shipped will have these and be pleased to be asked. Those that haven't will show you more hero shots.
Is anything dense?
If every case study is a consumer app with six screens and generous whitespace, the studio may not have handled genuine complexity. Products with permissions, roles, or heavy data are a different discipline.
Does the visual language repeat?
A consistent signature is a legitimate strength and also a constraint. If every app in the portfolio looks similar, you are commissioning that aesthetic. Decide deliberately rather than by accident.
How these are written
What each profile covers
Each of the ten follows the same structure so they compare directly.
Overview
What the studio actually does and where its centre of gravity sits — our assessment, not their marketing language.
Services
Disciplines with real evidence behind them.
Notable work
Clients sourced to case studies, credible press, or the client's own materials. Where a studio publishes no roster, the profile says so.
Ideal client
The situation the studio genuinely suits — more useful than a claim to suit everyone.
Key facts
Location, founding date, and ownership up front, including acquisitions — which change rates, process, and who you deal with.
Common questions
Before you brief anyone
What does app design and development cost? +
Design alone for a defined MVP commonly starts in the tens of thousands. Design and build through to a shipped consumer app more often runs into six figures. Consultancy-tier engagements start well above that. Approach two or three studios in parallel to calibrate, since none publish rates.
How long until we have something in the store? +
Design alone for a scoped MVP is typically six to twelve weeks. Design and build to a first release is more commonly four to nine months, plus store review. Timelines quoted without a discovery phase are estimates of hope.
Should design and engineering come from the same studio? +
If your in-house engineering is strong, design-only usually costs less and integrates better. If not, a combined partner removes a handoff where interaction detail, edge cases, and error states routinely get lost.
How do we check a studio has really shipped? +
Look the apps up in the stores yourself. Confirm they exist, are still maintained, and match what the case study claims. Then ask which parts of the work the studio owned.
Does location matter? +
Overlapping working hours matter more than geography, since app design depends on frequent review. Several studios here are remote or distributed and run this well. Four hours of daily overlap is a reasonable floor.
Why only ten studios? +
Because ten profiles written properly are more useful than fifty entries written thinly. This is a shortlist you can actually read.
thoughtbot
Mission Control
Bakken & Bæck
STRV
Utility
Huge
Work & Co
Instrument
frog