Custom Build
Personalized Mobile Application Development USA
We specialize in custom building applications catered to your business model. No pre-built templates, every app we create is custom to your specific features, workflows and brand.
Mobile app development services in USA
Your idea deserves more than lines of code. With Sitefy mobile application development service in the USA, you get to work with experienced designers and developers located here in the USA to develop, deploy and scale mobile applications that provide real business impact. Whether you are a startup with a new idea, a small business aiming to grow, or an enterprise in need of secure and scalable applications, we put strategy, technology and creativity to work to make apps that engage a user base and increase revenue.
Partner • USA
Mobile Application Development Company USA
When searching for a mobile app development company in the USA you want a partner that can communicate in the same business vocabulary, can comprehend compliance issues and communicate effectively across time zones. Sitefy combines technical depth with a keen focus on results. We don’t just write code, we want to partner with you to make sure that your application is right for your market with your users with your long-term vision.
Through our processes, we ensure that every app we deliver is secure, user-focused, scalable and measurable. We offer strategy, design, development, deployment and ongoing optimization services across the entire "app lifecycle".
- Strategy
- Design
- Development
- Deployment
Custom Build
Android
Android Application Development Services USA
Our android developers build secure and scalable applications that work seamlessly between a wide-range of devices. We focus on performance optimization, seamless user interfaces and compatibility with the latest Android builds.
iOS
iOS App Development Services USA
Apple users expect a premium experience and our iOS development teams work with the design and performance standards set out by Apple guidelines to build your elegant and reliable iPad and iPhone applications.
Enterprise
Enterprise mobile application development in the USA
We conceive and develop enterprise applications that are secure and ready for compliance. Our enterprise applications are designed to scale and deal with everything from ERP integrations, data security and user management.
On-Demand
On-demand mobile application development in the USA
We develop on-demand applications from delivery and ridesharing to booking applications and home services. Our team's on-demand applications connect users and providers in real time. Features include tracking, notifications, payments and easy onboarding.
UI/UX
Mobile and web application design and development company in USA (UI/UX)
Apps become great with the proper design. UI/UX experts design interfaces that are intuitive, beautiful and follow usability conventions from the modern world. The result is an increase in engagement and user retention.
Why Partner with Sitefy for Mobile App Development in the USA?
Selecting the right partner for your mobile application development can be the difference between success and failure. Discover why leading companies choose Sitefy.
Seamless Communication
Enjoy smooth collaboration within US time zones, ensuring easier communication and timely feedback.
Transparent Progress
We define and track measurable KPIs at every phase of development, keeping you informed and confident.
Built-in Reliability
Our in-house quality assurance and testing teams ensure your app is reliable, secure, and performant from day one.
Diverse Industries We Support
E-commerce
Providing apps designed for conversion, minimizing cart abandonment, and maximizing sales.
Healthcare
HIPAA-compliant apps that foster stronger connections between providers and patients.
Logistics
Real-time tracking apps and transparent supply chain solutions for efficient operations.
Education
Engaging learning platforms to connect schools or accounts with effective training programs.
Our Working Process
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01
Discovery & Strategy
All great apps start with Discovery. We investigate your objectives, target audience and competitors to create a product strategy. The outcome is a product roadmap designed to achieve your final goal.
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02
Design & Prototyping
After we develop the strategy, we create wireframes, prototypes and designs. This step, which helps us validate usability before we write any code, results in a visual prototype which we use to gather feedback.
What we require from you: brand guidelines, feedback on prototypes and timely review sessions.
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03
Development (Both Native and Cross-Platform)
Our agile sprint developers quickly focus on the delivery of functioning features. The developers use modern frameworks which, in turn, helps to maintain a lightweight, scalable and easier to keep a maintainable project. The outcome is a functioning app, built in increments.
What we require from you: approvals at milestones and active participation in sprint review sessions.
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04
Quality Assurance, Security & Performance
Every release undergoes manual and automated quality assurance, performance assessments and security evaluations. By the end of this stage, we deliver an app that is functional, secure and optimized.
What we require from you: user feedback from pilot tests and final sign-off for launch.
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05
Launch, Analytics & Post-Launch Optimization
We publish your app to the app stores, set up analytics and help in adoption tracking. After launch, we keep optimizations, updates and performance monitoring. Our result is a fully functional and supported live application post-launch.
What we will require from you is a final approval for launch and your preferences for reporting and analytics.
Technology Stack & Integrations
Our technology stack consists of: Swift, Kotlin, React Native, Flutter, Node.js, Python, .NET, Java, Firebase, AWS, GCP, Azure, Continuous Integration/Continuous Deployment (CI/CD) pipelines for transform code to app automatically, Docker, Kubernetes, Appium, Jest for javascript, XCTest for ios and many others. For integrations, as stated in the scope, we regularly link applications to various alternative payment systems, CRMs, ERPs and third-party APIs, as well as the other integrations listed in the scope.
Swift
Kotlin
React Native
Flutter
Node.js
Python
.NET
Java
Firebase
AWS
GCP
Azure
CI/CD
Docker
Kubernetes
Appium
Jest
XCTest
Payment Systems
CRMs
ERPs
Third-party APIs
Pricing & Cost Guide
Development pricing for a mobile app varies based on the complexity and scale of the project. Here is a general guide to our estimates.
Custom & eCommerce Apps
$40,000 - $120,000
For fully customized apps or feature-rich eCommerce applications.
Complex SaaS & Enterprise Apps
Exceeds $100,000
For developing sophisticated software as a service (SaaS) and corporate applications.
Full Enterprise Solutions
Begins at $150,000
For comprehensive, large-scale enterprise solutions with extensive integrations and compliance needs.
Main Factors Affecting Our Pricing
Features
Third-Party Integrations
Security
Platforms (iOS, Android)
Compliance
Delivery Times
Tech Stack
Our Flexible Pricing Models
Milestone-Based
Fixed Price
Dedicated Teams
Monthly Retainers
Would you like a more detailed estimate?
Request an estimate and receive a custom quote in 48 hours.
Mini Case Snapshots
Case 1: This retail start-up was transitioning to e-commerce.
We developed a cross-platform e-commerce app that had a fast checkout process and personalized recommendations. Greater customer engagement and an improved purchasing experience were the end results.
Case 2: We developed a tailored tracking app and added real-time information and updated reporting dashboards.
The result was significantly less delay and more accurate delivery timelines.
Case 3: This healthcare provider desired secure processes to engage in treatments with their patients.
We worked with them to develop a mobile application that allowed patient management with regard to appointments, reminders and secure messaging, all of it HIPAA compliant and secure.
What Our Clients Say
“Working with Sitefy was effortless. They guided us every step of the way and more than kept their end of the bargain.”
“Every app development cost was clear and we understood what to expect every step of the way.”
“They supported us post-launch and made us feel confident enough—it was as if we could never lose.”
Security, Compliance & Domains
OWASP
HIPAA
GDPR
WCAG / US
We adhere to OWASP security standards and handle HIPAA and GDPR compliance, WCAG accessibility standards and American accessibility standards as appropriate or needed. Every project includes source-code ownership, documentation and knowledge transfer.
CloudDNS
Monetize
Domain Parking & Monetization Corner - CloudDNS Domain parking lets you secure your brand, capture leads, or validate demand before full development. CloudDNS provides basic landing pages, redirection and other DNS management features. You can convert parked domains into lead capture pages or capture traffic and monetize with ads.
Best practices for monetizing traffic include setting up analytics, running A/B tests on landing pages and experimenting with ad placements or lead forms.
Sitefy analytics and optimization resources can further strengthen your domain strategy. Explore more at sitefy.co.
Frequently Asked Questions
What is the estimated cost of developing a mobile app in the USA?
In the USA, costs for mobile app development vary widely, generally from $20,000 to $120,000 depending on features and platforms; costs for enterprise projects are generally above $150,000.
What mobile app is most used in the USA?
Messaging, Social Media, eCommerce and Fintech apps are still the most used across the USA.
What are the best mobile app development companies?
The best companies are the ones that have demonstrated the necessary skills and expertise, provided transparent pricing on development services, reasonably good post-launch support and the best reference checks and references and testimonials from clients.
How long does it take to build an app?
Basic apps often take 2 to 3 months. More complex apps with several integrations usually take 6 to 12 months.
Should I build native or cross platform?
Native apps offer the highest performance and user experience, while cross platform apps save development time and development costs. The right way is based upon prioritizing what matters to you.
What about app maintenance?
App maintenance generally costs 15-20% of the original development budget each year for app updates, bug fixes and to provide new feature roll outs.
About Sitefy
About Sitefy
Sitefy is your go-to partner for strategy, mobile app development, analytics and optimization. We help companies launch and scale apps confidently. To learn more about our services, check out Sitefy web development or visit Sitefy.