150+ Apps Delivered with
98% Client Satisfaction
App369 is a Miami-based software development company with 12+ years of experience. According to Clutch, agencies with 100+ completed projects demonstrate significantly higher delivery consistency -- and we have earned a 4.9/5 rating across 47 verified client reviews.
Founder-led product strategy, design, and engineering for ambitious teams.
Founder-led strategy, design, and engineering for ambitious teams.
Our Story
App369 was founded in 2018 with a simple mission: to help businesses transform their ideas into powerful digital solutions. Based in South Florida, we have grown from a small team into a full-service company that has delivered over 150 mobile apps, web platforms, and e-commerce stores. According to CompTIA, Florida ranks among the top 5 states for technology industry growth.
We believe that great software isn't just about code - it's about understanding our clients' unique challenges and crafting solutions that drive real business results. Every project we take on is an opportunity to make a meaningful impact.
Today, we work with startups, enterprises, and everything in between, delivering mobile apps, web applications, and custom software solutions that exceed expectations.
Our Values
The principles that guide everything we do.
Quality First
We never compromise on quality. Every line of code, every design element, every interaction is crafted with care.
Client Partnership
We see ourselves as an extension of your team, working together toward shared goals and mutual success.
Innovation Driven
We build with Flutter (used by 42% of cross-platform developers, Statista), Vue.js, Firebase, and Google Cloud to deliver solutions that are modern, scalable, and future-proof.
Leadership
Meet the people driving App369 forward.
Simon Dziak
Founder & Lead Developer
Software engineer with 12+ years of hands-on development experience. Simon has personally led the delivery of over 150 projects across mobile, web, and enterprise platforms. He founded App369 in 2018 with the mission of building technology that drives real business results.
Our Milestones
Key moments in our journey from startup to established software company.
App369 Founded
Simon Dziak founded App369 in South Florida with a focus on delivering high-quality mobile and web applications for businesses of all sizes.
First 25 Projects Delivered
Completed our first 25 client projects spanning mobile apps, web platforms, and custom software solutions, establishing a reputation for reliability.
Flutter Adoption & Remote-First
Adopted Flutter as our primary cross-platform framework, enabling faster delivery and lower costs. Transitioned to a fully remote-first team to serve clients nationwide.
75+ Projects Milestone
Surpassed 75 completed projects and expanded into enterprise solutions, healthcare, and fintech verticals.
4.9/5 Rating on Google
Achieved a 4.9 out of 5 average rating across 47 verified client reviews, reflecting our commitment to quality and client satisfaction.
150+ Projects Delivered
Reached the milestone of 150+ delivered projects with a 98% client satisfaction rate, serving startups and enterprises across multiple industries.
AI & Automation Integration
Expanded our technology stack to include AI/ML capabilities with OpenAI, Google Vertex AI, and LangChain, helping clients leverage intelligent automation.
Industry-Leading Technology Stack
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