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App Development doesn't need to be complicated.
Let us help!

About Us

Welcome to AJ Development, a Mobile App agency in Hertfordshire with a history of making highly successful apps in a range of different sectors. We are passionate about creating innovative solutions that help our clients achieve their goals and work together with out clients to create high-performance, reliable, and visually stunning applications that users love to use!

We have a wealth of experience on working on all the key areas that make a successful app, from a highly responsive front end, to a performant and secure backend architecture.

We believe in transparency, collaboration, and communication. We work closely with our clients to understand their needs, goals, and challenges, and we strive to exceed their expectations with every project we undertake. We value our clients' input and feedback throughout the development process, and we are committed to delivering solutions that are tailored to their unique needs.

Our Services


We believe in creating beautiful and intuitive user interfaces that are tailored to your specific needs. Our design team works hand-in-hand with our developers to ensure that your application not only looks great, but also functions flawlessly.


We specialise in developing mobile applications that are responsive, scalable and reliable. We leverage the power of React Native to deliver fast and smooth experiences across all mobile devices.


We can help you seamlessly integrate your app with other systems and platforms, such as APIs, third-party services, and databases. We ensure that your app runs smoothly and seamlessly, no matter what platforms it interacts with.


We offer ongoing app maintenance and support services to ensure that your app stays up-to-date, secure, and bug-free. Our team of experts is always on hand to help you with any issues or concerns you may have.

Why Choose Us?


Personal Touch

We ensure that we work closely with our clients to fully understand what they are looking to achieve and work towards achieving that together.


Cost-Effective Solutions

We offer cost-effective solutions that are tailored to your specific needs and budget, ensuring that you get the most bang for your buck.



We have worked on multiple projects over the years and we know how to ensure the project remains on track and gets delivered as expected... On time.

Contact Us!

Welwyn Garden City,



07904 171091

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