Founder-led · Boynton Beach, Florida

Custom App Development
in Palm Beach County

App369 is a software development company based in Boynton Beach, Florida, building iOS, Android, and web applications using Flutter.

Brands in our portfolio

BILSTEIN

Chicago Pneumatic

Gavalina

SaLT Jewelry

BILSTEIN

Chicago Pneumatic

Gavalina

SaLT Jewelry

Palm Beach County based

Flutter

iOS, Android & web

50/50

Upfront & on delivery

Eastern Time hours

Our Services

Custom iOS and Android apps built to be easy to use, reliable, and scalable. Whether it's a personal project, startup, or enterprise tool, App369 turns your idea into a production-ready application.

AI automation reduces manual work and operating costs. App369 identifies where AI fits your workflows — from document processing to customer support — and builds custom solutions integrated into your existing systems.

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 the Senior Developer Who Builds Your App

At App369, our founder and head developer personally leads every project. Unlike larger firms where projects are often delegated to junior team members, you work directly with the senior engineer who builds your app, 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.

Fixed-price services

Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.

Projects for Brands like BILSTEIN

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BILSTEIN

Mobile & Web App

The Bilstein App simplifies how users interact with automotive suspension technology. This intuitive app provides a unified solution for finding, configuring, and optimizing Bilstein suspension products for any vehicle.