Professional App Development Services

Custom - Mobile & Web App Design for Exceptional UX

At Granite Codes, we provide custom app design services in the USA focused on clean, user-first design. Our U.S.-based team creates high-quality UI/UX solutions for iOS, Android, and web apps — ensuring your product looks great, works seamlessly, and converts effectively. From mobile-friendly layouts to functional prototypes, we design apps that perform beautifully across all devices.

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Designing Apps That Are Both Attractive and Effective

At Granite Codes, we offer end-to-end UI/UX app design services that transform your ideas into intuitive, user-friendly experiences. Our team crafts high-fidelity mockups, custom UI kits, and responsive layouts to ensure your app looks and performs flawlessly across iOS, Android, and web platforms. And to make your product even more engaging, our Motion Graphics Services add dynamic visuals and interactive elements that bring your app to life and captivate users.

Full App UI Kits: Custom kits that fit your brand's style.
High-Fidelity Screen Mockups: Detailed mockups of your app's interface.
Mobile-Friendly Layouts: Responsive designs for both iOS and Android
Prototypes: Interactive prototypes that bring your design to life.

Design-First App Solutions for Startups and Growing Brands

At Granite Codes, we understand the fast-paced world of startups and the demands of the tech industry. That’s why we take a design-first approach — creating apps that don’t just look great but also deliver seamless user experiences while supporting your business goals. Through open communication, agile workflows, and close collaboration, we transform your ideas into intuitive products. From wireframes to polished UI, we design apps that truly connect with users.

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Scalable App Design Packages for Every Business Stage

We provide flexible app design pricing plans built to fit your budget and business stage. Whether you’re creating a startup MVP or designing a fully developed mobile app, we have packages tailored to your needs. Every plan includes essentials like high-quality mockups, editable source files, and multiple revisions, ensuring you get a design that’s both polished and practical.

Basic Mobile Package

Perfect for validating your app concept

$499.00

1-hour consultation to understand business requirements, objectives, and target audience.
Design 3 key screens (home page, login page, and settings) with basic wireframe layout.
Basic color palette and button designs aligned with branding guidelines.
Simple UI components like buttons, forms, and text fields.
Basic click-through interactive prototype to visualize the app's flow.
Provide design files in PNG or JPG format.
2 rounds of feedback and revisions.
Final design delivered via email or file sharing with clear instructions on how to proceed with development.
Money-back guarantee

Add on: $29 for expedited services

Growth Mobile Package

Investor-ready app design

$1,499.00

2-hour consultation with in-depth analysis of user personas, competition, and business goals.
Design up to 5 key screens with detailed wireframes and UI elements (home page, profile page, product listing, checkout page, and settings).
Custom-designed icons, buttons, and forms tailored to brand identity.
UI design for both iOS and Android responsive design with user experience optimization.
High-fidelity clickable prototype with advanced navigation for user testing.
Provide design files in PSD/Sketch/Adobe XD format, along with a style guide.
3 rounds of revisions, including feedback on usability and aesthetics.
Optimization of user flow based on initial feedback and basic user testing (optional).
100% money back guarantee

Add on: $89 for expedited services

Premium Mobile Package

Enterprise-grade mobile solution

$2,999.00

3-hour consultation for detailed analysis including user research, competitive analysis, and business objectives.
Wireframe designs for up to 10 screens with user flows, advanced navigation, and multiple features.
Fully custom interface design with custom typography, color palette, unique icons, and interactive elements.
UI/UX focus on creating an intuitive user experience, ensuring easy navigation and clear CTAs (calls-to-action).
Full high-fidelity prototypes with advanced animations and transitions, optimized for usability.
User-centered design based on real feedback from target users.
A comprehensive design system with typography, color schemes, and reusable components.
Full design documentation and handoff of assets in Figma/Sketch/Adobe XD.
Unlimited revisions (within project scope).
1 month of post-launch support for minor tweaks and refinements.
100% money back guarantee *

Add on: $129 for expedited services

Enterprise Mobile App Design Package

White-Glove Solution for Large-Scale Businesses

$5,999.00

Up to 5 hours of consultation to fully understand extensive requirements, user journeys, and business goals.
Design up to 20 key screens, including multiple user flows, complex features, and interaction patterns.
Fully tailored user interface design with custom typography, icons, illustrations, and animations.
Full-motion prototypes with advanced transitions and interactions.
In-depth user testing and design revisions based on feedback.
A full design system with reusable components and detailed guidelines for developers.
Comprehensive documentation, including design files and developer handoff instructions.
Unlimited revisions (within project scope).
1 month of post-launch support for refinements and bug fixes.
100% Ownership Rights
100% Money Back Guarantee

Add on: $179 for expedited services

Redesign & Refresh Mobile App Package

Modernize Your Existing App

$1,499.00

Full audit of the existing app to identify pain points, usability issues, and areas for improvement.
Gather feedback from current users through usability tests or surveys to inform the redesign process.
Redesign up to 10 key screens (e.g., home, profile, settings, or other frequently used pages).
Enhance visual design, optimize user flows, and ensure consistency across the app.
Create custom icons, buttons, and UI components to modernize the design.
High-fidelity mockups and an updated interactive prototype reflecting the redesign.
Update color schemes, typography, and iconography to better align with the current brand identity.
3 rounds of revisions, allowing clients to refine specific areas of the design.
Final assets delivered in PSD/Sketch/Adobe XD with a style guide for developers.

Add on: $300 for expedited services

Ready to Launch an App with Beautiful & Functional UI?

Great design goes beyond visuals—it’s about creating seamless user experiences that drive engagement, conversions, and brand loyalty. Whether you need a custom UI design for your mobile app or a web app interface, we’re here to turn your ideas into a beautifully functional app that stands out in the market.

A quick Look At Our Portfolio

Our portfolio showcases the creativity and diversity of our design projects. Take a look at the high-quality logos and websites we’ve crafted for U.S.-based clients. We believe in creating original, tailored designs that reflect each client’s unique identity. Our web design portfolio USA demonstrates our ability to cater to businesses of all sizes, from startups to established companies.