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New York City

22 Cortlandt Street, Suite 1101
New York, NY 10007
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Mobile app development that delivers real business value.
Phone App Mobile Application Development
A dynamic mobile experience can make or break your business’ web presence and core applications. DOOR3 has the extensive background and expertise in mobile development to create cutting-edge smartphone apps and mobile experiences that can truly set your brand apart.

Mobile Application Development

Mobile Development DOOR3

When it comes to mobile software and app development, we take a holistic view; it’s not just code, but a complete system, from the back-end technology to the front end mobile experience and business logic that brings it all together.

There’s no denying that smartphones and tablets are integral to our modern lives. Your customers and users are increasingly interacting with your products on the go, and your mobile experience can make or break much of your business. While common frustrations can make a user swipe away, a smooth and intuitive mobile site or app can be a real asset. That's why you need Door3 for all your Mobile Application Development Services.

When it comes to creating a great mobile presence, who you partner with matters. Mobile first may be a popular catchphrase, but a mobile application development solution won’t work for you if it’s not integrated with your whole system. At DOOR3, we don’t just develop the code that sits on your phone or tablet; we build the end-to-end architecture & core engineering system, from the back-end technology and data connections to the business logic that makes your mobile experience work. Our broad technology base and extensive experience give us the tools to build complex end-to-end iOS and Android mobile development projects that go deep into your enterprise.

A Sample of Our Many Mobile Application Development Services and Capabilities:

Xamarin
We use this mobile language maintained by Microsoft to develop native-performing apps that can span Android, iOS, and Windows on a single shared .NET code base that is optimized for performance.

Ionic
We rely on this open-source framework to create scalable cross-platform hybrid mobile apps built on common web technologies that can unify your back end and front end on the same JavaScript platform.

Objective C
This central mobile programming language defines Apple’s iOS API and is crucial to developing native applications for iPhone and iPad.

Java
This mobile language maintained by Oracle is based on a Linux kernel and is the standard for any native Android app development project.

Swift
Another language for building native iOS apps, Swift is a growing open-source language that also offers support for Linux and other Apple platforms.

React Native
Maintained by Facebook and built on a JavaScript base, this React-based language allows for faster loading times in apps built for iOS and Android

Angular NativeScript
This open-source language for building iOS and Android apps are built on the Angular framework, offering native performance across platforms with an extensive library of plugins and third-party libraries.

We build real-world mobile application solutions.

We consider the context,
Mobile devices are meant to be used on the go. Whether you expect your users to be scrolling from their couch, on the train, or on a job site, we take the use cases into account and build the experience that’s right for the environment.

Execute on a technical level,
We aren’t just plugging into an API and calling it a day. We back up our thoughtful UX design and broad experience strategy expertise with hard-core tech execution and create end-to-end solutions that will work with your back-end systems and data.

And give you the tools to succeed.
Our mobile development projects will help your digital strategies and digital business run better to succeed. We work with clients to make smart decisions, and design and evolve core technologies in ways that economically meet your business objectives.

Mobile Application Development Trends

Shifting Mobile Development Best Practices
Mobile experiences have shifted from being merely desktop sites shrunk down to robust native apps that give users a truly optimized experience. But as the fight for space on users’ phones becomes more heated and the app market goes from saturated to overcrowded, is a native app, or a modern Web-based or hybrid approach the most strategic solution for your business? We stay current with native mobile development and Web-based mobile frameworks such as React NativeScript and React Native, to make sure we select the optimal approach for your business now and for the future.

Virtual and Augmented Reality
Mobile devices are the epicenter of augmented reality development and a wave of headsets have made them central to virtual reality as well. Emerging technologies like these require innovative capabilities and design thinking to create applications that use them in a smart way. Our work is grounded in experience design and practical use cases to make sure AR, VR, and other new mobile-centric technologies aren’t just a flash in the pan.

About DOOR3 A Leading Mobile Application Development Services Company | Call for a FREE Quote

Door3-Logo-Small-200x200For over 16 years, DOOR3 has been serving small to large Fortune 500 companies worldwide including AIG, MORGAN STANLEY, HP, FRESH DIRECT, OLYMPUS, WELLS FARGO, ELIZABETH ARDEN, CLINIQUE, NEW BALANCE, and TIMEWARNER among others. We capitalize on our strong Technology, Design, and Strategy backgrounds to help our clients build powerful, reliable software applications, engineer platform software, and design software to run a wide variety of products. DOOR3 serves the financial services, legal, healthcare, non-profit and education, construction and contracting, healthcare, manufacturing, insurance; consumer services, retail, and eTail industries. DOOR3 Business Applications Inc. was founded in 2002 and is based in New York, NY.

2015 Webby Award Winner

DOOR3’s iPad application for FreshDirect was named Best Shopping Application in the Webby Awards, the leading international award honoring excellence on the Internet.

Client Testimonials:

DOOR3 has been FreshDirect's partner in mobile development for many years. Their tailored, pragmatic and highly engaged approach means that we are constantly working together to grow and enhance the FreshDirect offering and ensure our customers have the best experience possible.
Jodi Kahn Chief Consumer Officer, FreshDirect
The DOOR3 team was very successful in creating a single, unified User Experience. They created a fantastic app that has been successful in delighting existing customers and attracting new subscribers. With DOOR3 you not only get great UX and design, you get a dedicated business partner

Eva Kantor, VP Products, IDT Corporation

Clients We've Worked With: