Custom Mobile App Development Services
We create custom applications for iPhone, Android, and the web. Discover what makes us the finest mobile app development services firm in the United States.

Consistent, high-quality app development agency
Reliable Custom Mobile App Development Service Providers in the United States
For over a decade, Zco has provided our clients with reliable software design and development services. Working with us, you’ll have access to our skilled team of engineers working with leading-edge software development technologies.
Our mobile application development team is well-versed in software development technologies like Swift, Kotlin, React Native, Flutter, Xamarin, custom PHP development for web apps, and more.
View our mobile app development portfolio list to see dozens of diverse and successful iOS and Android mobile apps.
Get your app developed on-time and on-budget
How To Create Successful Mobile Apps
Successful mobile app development starts by thoroughly understanding your business needs. From the very beginning, you can expect comprehensive design documentation that hones in on the solutions to the problems you aim to solve. Our agile development, testing, and post-launch support will take you to the finish line and beyond.
The foundation of any mobile app project is the prototype. We start by providing low-fidelity black and whites before moving on to high-res wireframes in Adobe XD or Justinmind.
Featured Videos
5 Design Tips for Mobile App User Interfaces (UI)
These 5 design tips for mobile app UI will help your users navigate effectively and help your app be a strong brand identity-building tool for your company.
10 Ways To Get an Accurate Estimate for Your App
There are many factors to consider when building an app that will affect the cost. Here are the top 10 ways to ensure an accurate app cost estimate for your business.
Our Mobile App Development Services
iOS App Development
Since 2008 we’ve been learning and innovating in order to offer one of the most comprehensive iOS app development services on the market. Previously developed through languages like Objective C, the standard for high performance is now Swift, which offers a whole new level of smooth user experiences. Whether it’s the latest iPhone, iPad, or Apple Watch, our mobile app developers have the experience necessary to create a stand-out product.
Android App Development
Our developers have extensive experience producing native software for Android, the most used mobile OS in the world. Your project can run across all manner of Android devices using Kotlin and Java based technologies. Our design expertise will allow you to target a wider audience while standing out from the crowd.
Native App Development
Native application development can harness mobile devices’ full power and performance through specialized APIs and programming languages. This allows your app to be as fast, efficient, and smooth as possible. It’s also the best option to utilize device functions, like GPS or Bluetooth, as harnessing a device’s sensors is more difficult in a hybrid environment. Our native app development service is a fit for both startup and enterprise-level clients.
Hybrid App Development (Cross Platform)
Blending the power of mobility with and cross-platform compatibility, our hybrid apps development service is the perfect choice for clients seeking to maximize their project’s installation base while minimizing the overall cost of their project. At Zco we can use our experience in React Native, Xamarin, Flutter and other hybrid technologies to craft multi-platform mobile apps.
Progressive Web App Development (PWAs)
Progressive Web Apps, or PWAs, are created with web development languages such as HTML 5, CSS, and JavaScript. They are often mistaken for Hybrid apps due to the cross-platform nature and the similarities in development languages. Our web application development services can even produce apps that have enhanced offline functionality. PWAs are also an excellent choice for enterprise application development as they can be used across devices and do not require downloads or device-level storage.
Our Mobile App Development Process
Step 1
In-Depth Assessment
Every custom software project begins with an in-depth assessment of your project’s requirements and its software life cycle. An account executive and project manager will work with you to determine the scope of your project and develop a plan of action.
Step 2
Technical Requirements
We’ll help you determine security and encryption requirements, the cost of custom software development, database and cloud software, as well as integration with the hardware and software development services your company utilizes.
Step 3
Agile Development
Through agile software development, your project is built over several iterative cycles. New builds of the project are regularly shared with you to gather feedback and integrate your recommendations into the project.
Step 4
Quality Assurance
Throughout active development our quality assurance teams ensure the product is rigorously tested, seeking out and eliminating any bugs found. When the software is rolled out to your user base, it will be ready for prime time.
Step 5
Deployment
At the end of the QA process, your app is deployed and made available on its platform’s respective marketplace for public use. From here you can promote your app, get its first users, and grow your business.

Featured Client App
SuperDraft was born out of a challenge to deliver winning experiences to every sports fan. Users can explore their wildest lineups with fewer restrictions. The challenges, risks, and rewards give users an experience like no other.
At the heart of the SuperDraft experience is a high-quality user interface that empowers players to build and manage their fantasy teams as they see fit. The app marries the thrill of head-to-head competition with a sleek look and rock-solid technical underpinnings.

Client Success Stories

GolfLogix
GolfLogix has 5 million users across the globe. Why? Because they continue to evolve the app to exceed the expectations of golfers and set the standard for what a GPS app should be. With Apple Watch support, over 70 thousand App Store reviews, and 4.7 star rating, GolfLogix has become a household name in golf.

invisawear
The idea of fashion accessories that double as safety devices has flourished since invisawear’s inception. Now, they’ve even collaborated with ADT for even more advanced safety on the go. That means a 24/7 connection to the Safety Network of ADT Security Agents. invisawear was also featured in an article from Wired.

Advantage4Kids
Advantage4Kids is a math and reading learning system created for Southwestern Advantage. It takes overly complicated school lessons and distills them into individual concepts. With quizzes and over 400 tutorial videos, students achieve goals like never before with Advantage4Kids.
Why Choose Zco?
30+ years of software development experience. There aren’t many development firms with this kind of longevity.
Over 250 of the finest project managers, engineers, and architects in the industry. This means that we can take on projects of any size and scale as needed.
We adopt the agile development methodology. Your project will move along quickly while incorporating your feedback every step of the way.
We develop in all of the latest and best development technologies. Swift, Kotlin, React Native, Xamarin, Flutter, and more.