Mobile UI/UX Design in New York That Converts

Mobile UI/UX Design costs vary based on how many screens your app needs, how many user flows you're testing, and whether you need a full design system or just a handful of new screens, which is why New York App Devs prices every design engagement on a fixed-price basis agreed before work begins. The number you agree to is the number you pay, with no hourly rate and no surprise invoices for scope you already approved. A design sprint for a handful of core screens is a smaller scope than a full design system built for a multi-platform app with dozens of user flows, so pricing always reflects what your specific app actually needs, not a generic package. For a real ballpark, use the Cost Estimator on this site, which asks about your platform, app type, and screen count and returns a range in minutes with no sales call required. Getting an exact number still takes a short scoping call with our team, since a calculator can't see every detail of your project, but the estimator gets you close fast.

There's no single timeline that fits every design engagement, because screen count and the number of user flows being tested vary too much from project to project. What's fixed is the process: wireframes come first, low-fidelity layouts of every screen and how a user moves between them, followed by high-fidelity mockups and a clickable prototype built in Figma. That prototype gets tested with real users before a single line of code gets written, so usability problems surface and get fixed while a change still just means editing a screen, not rebuilding a feature. Most design engagements move through this in one to two week cycles, with a working deliverable to review at the end of each one, so you always know exactly where the design stands. Once the design is approved, it moves directly into development, where working builds get delivered incrementally through TestFlight or internal Android testing tracks, so you can confirm the finished app matches what you signed off on.

Mobile UI/UX Design at New York App Devs covers the full design process: wireframing every screen and user flow, high-fidelity mockups and a clickable prototype built in Figma, a reusable design system covering typography, color, and components, and usability testing with real users before development starts. Every engagement runs through the same UI/UX design stage as our full seven-stage development process, so a design-only engagement and a full build follow the same rigor, whether you're validating a new app idea or redesigning screens in an app that already exists. Client review and approval cycles are built into the process, not treated as an afterthought, so you're signing off on each stage before we move to the next. Once a design engagement is complete, you own 100% of the design files and the design system itself, with no licensing fees and no vendor lock-in, whether you build the app with us afterward or hand the files to another team.

Yes. Our office is in Midtown Manhattan, at Americas Towers, 1177 6th Ave, 5th Floor, New York, NY 10036. We're a local, hands-on design and build partner, not a national call center or an offshore team with a local-sounding name. If you'd rather walk through wireframes or a prototype in person instead of over a screen share, you can stop by, call, or book time with the same New York-based team who'll actually be on your project, not a sales rep who hands you off once the contract is signed. We serve businesses across the five boroughs, Northern New Jersey, Westchester County, the Long Island and Queens corridor, and Stamford, Connecticut, all from this one Midtown office.

Yes. We're HIPAA and GDPR verified, and we design with compliance in mind from the first wireframe, not as a fix applied after development, since a healthcare or fintech screen designed without compliance requirements in mind usually means rebuilding parts of the UI later. We've built HIPAA-compliant architecture directly into a real mobile healthcare app, so patient-facing screens, consent flows, and data-handling interactions get designed to that same standard whenever a project's data handling requires it. Beyond HIPAA and GDPR, we also offer SOC 2 and PCI-DSS readiness support for teams preparing for an audit, though we don't claim a completed SOC 2 or PCI-DSS audit unless a specific engagement has actually gone through one. If your app touches health data, payment data, or any other regulated information, that conversation happens during discovery, before a single wireframe gets drawn, not after design is already underway.

There's no independent, verifiable ranking of "best" UI/UX design companies in New York, so treat any agency claiming that title with the same skepticism you'd apply to a five-star review with no name attached. What you can verify: New York App Devs is DesignRush-recognized as a Top Mobile App Development Agency (2025), works from a real Midtown Manhattan office, is HIPAA and GDPR verified, and has 14 real, named-reviewer client testimonials you can check independently, including a review that specifically describes our UI/UX design work. Every design engagement is fixed-price, tested with real users before development starts, and you own 100% of the resulting design files at completion. Ask any UI/UX design company you're evaluating for the same four things: a verifiable award, a real local address, named client reviews, and a written ownership guarantee for the design files themselves, not just the code.