Mobile App Design Services
App design agency for iPhone, Android and web apps. Get a free clickable design of your 5-6 key screens, with no obligation.
Design Before You Build
See and test your app before any code is written, starting with a free clickable design of your 5-6 key screens.
5-6 key screens, no obligation.
Designs that follow Apple and Google guidelines.
Developer-ready designs, built by us or your team.
App Design Agency
Polished, modern app screens.
Fewer taps to the things users need.
Tap through the app on your phone.
Modernize an app that feels dated.
Reusable components for consistent screens.
One team from design to App Store.
Claim Your Free App Design
Book a free call and we will design 5-6 key screens of your app as a clickable prototype, with no obligation.
What We Design
From a first prototype to a full app design:
Startup App Designs
Prototypes to test ideas and show investors.
Business App Designs
Apps for customers, staff and partners.
App Redesigns
Cleaner, faster, easier apps.
Why Choose Three Circle as Your App Design Agency?
We design apps that we also build and launch, so every screen is practical to develop. Our apps include an HR app used by 5,000+ employees and the Optimized Strength fitness app with 1,000+ downloads.
Designs That Get Built:
Real apps in use, not just mockups.
Free First Design:
5-6 key screens, no obligation.
One Team:
Design, development and launch together.
US-Registered Company:
Registered in Sachse, Texas, working with clients across the US.
Clear Pricing:
Free design, then a written estimate.
Clickable Prototypes
Try your app on your phone before it is built.
App Design Services That Turn Your Idea Into a Clickable App
Three Circle is an app design agency for startups and businesses across the US. We design iPhone, Android and web apps that are simple to use and ready to build: user flows, wireframes, polished UI screens and a clickable prototype you can tap through on your own phone. Best of all, we will design 5-6 key screens of your app for free, with no obligation.
Mobile App UI Design
Clean, modern screens that follow Apple and Google design guidelines, so your app feels at home on iPhone and Android.
UX Design and User Flows
We map how people sign up, find what they need and complete key actions in as few taps as possible.
Wireframes and Clickable Prototypes
Test the idea with users, partners or investors before any code is written.
App Redesign
Refresh an existing app that looks dated or confuses users, without losing what already works.
Design Systems and Developer Handoff
Reusable components, colors and type styles, handed over ready for development by us or your own team.
Get a Free Clickable Design of Your 5-6 Key Screens
- Free call: tell us your idea, your users and the main things they need to do.
- We design 5-6 key screens of your app as a clickable prototype.
- You review it on your phone and share it with your team or investors.
- No obligation: keep the design and decide your next step.
Ready to build? Your starter MVP costs from $3,000, or $1,500 (50% off) when you claim the free design. See our MVP development offer.
Apps We Have Designed and Built
Optimized Strength: AI-Powered Fitness App with 1,000+ Downloads
Optimized Strength is a cross-platform fitness app built with Flutter for iOS and Android and a secure ASP.NET Core back end. It gives users more than 1,300 exercises, personalised AI coaching and progress tracking with visual charts. Result: 1,000+ downloads.
HRM Platform and Mobile App Used by 5,000+ Employees
For a growing organisation we built a complete HR management platform: a web admin dashboard (React and Angular) for employee records, attendance and office operations, a Flutter mobile app for attendance and leave requests, and an ASP.NET Core API behind both. Result: more than 5,000 active users.
LuvInvite: Party Sharing and Event Management App
A party sharing and party management app for a US client that handles a party end to end in one place.
MomoMi: Crypto Wallet App
A crypto wallet for users in Africa and the MENA region, designed to make secure crypto simple to use.
See more in our portfolio.
How Much Does It Cost to Design an App?
- Free design: 5-6 key screens as a clickable prototype, no obligation.
- Full app design (all screens, user flows, design system): priced by the number of screens after a free call.
- Design and build together: starter MVP from $3,000, or $1,500 with the free design.
Our rates start from $35 per hour. Estimate the whole project with the app development cost calculator.
Our App Design Process
- Discovery: goals, users, competitors and must-have features.
- User flows and wireframes: the structure of every key screen.
- UI design: colors, typography, icons and polished screens.
- Clickable prototype: tap through the app on your phone.
- Feedback and revisions: agreed rounds of changes.
- Handoff or build: we build it with iOS, Android or Flutter development, or hand it to your team.
See all our mobile app development services and UI/UX design services.
Want results like these? Tell us about your app design project and get a free consultation.
Ready to See Your App?
Book a free call and get 5-6 key screens of your app designed free, with no obligation.
- FAQs
Frequently Asked Questions
Yes. We design 5-6 key screens of your app as a clickable prototype for free, with no obligation to build with us.
A clickable prototype of 5-6 key screens that you can tap through on your phone and share with your team or investors.
The first 5-6 key screens are free. A full app design is priced by the number of screens after a free call. Our rates start from $35 per hour.
It depends on the number of screens and rounds of feedback. You get a timeline on the free call.
Yes. We design apps for iOS and Android following Apple and Google design guidelines, and web apps too.
Yes. We build iOS, Android and Flutter apps. A starter MVP starts from $3,000, or $1,500 when you claim the free design.
Yes. We review your current app, find where users get stuck and design a cleaner, modern version.
Yes, you keep the free design. For paid projects, ownership is set out in your agreement with us.