Custom App Development
with 150+ Apps Delivered
App369 is a Miami-based software development company building iOS, Android, and web applications using Flutter. According to Statista, the global app market will reach $614 billion by 2026 -- we help businesses capture that opportunity with 98% on-budget delivery.
Trusted by leading companies
Our Services
Have an idea for a mobile app? We create custom apps for iOS and Android that are easy to use, reliable, and built to grow with you. Whether it's a personal project, startup, or passion project, we'll help you make it a reality.
We can help you automate your business processes using AI. Our team will work with you to identify areas where AI can improve efficiency and reduce costs, and then develop custom solutions to meet your needs.
A website is essential for any idea you want to share with the world. We build modern, responsive websites that work smoothly across all devices, helping you connect with your audience and bring your idea to life online.
Once your app or website is launched, we offer ongoing maintenance services on an a la carte basis. Whether you need updates, improvements, or support, we're here to keep your app running smoothly as your business evolves.
Work Directly with a 12+ Year Senior Developer
At App369, our founder and head developer personally leads every project -- an approach that has earned a 4.9/5 average rating across 47 client reviews. Unlike larger firms where projects are often delegated to junior team members, you work directly with a senior engineer with 12+ years of hands-on experience from start to finish.
By working closely with the owner, you can be confident that your project will receive the highest level of care, attention to detail, and innovative solutions tailored to your unique requirements.
Our goal is not just to deliver a product but to create an exceptional development experience where your vision is brought to life with precision, dedication, and the expertise it truly deserves.
From Idea to Launch in 8-12 Weeks
Understanding Your Idea
We start by listening to your idea and understanding your goals, then we create a plan to bring your idea to life.
Design & Development
We design and build your app or website with you in mind, making sure it's easy to use, visually appealing, and works on all devices.
Launch & Support
Once your app or website is ready, we launch it and continue to provide support, making sure it works flawlessly as your idea grows.
150+ Projects for Brands like BILSTEIN
View All →BILSTEIN
Mobile & Web AppThe Bilstein App revolutionizes the way users interact with automotive suspension technology. This intuitive app provides a seamless solution for finding, configuring, and optimizing Bilstein suspension products for any vehicle.
Chicago Pneumatic
Mobile & Web AppA data visualization dashboard. Mobile app for searching inventory.