Fort LauderdaleApp and software developer for Fort Lauderdale
App369 is one developer, Simon Dziak, building mobile apps, web apps and custom software for Fort Lauderdale and Broward County businesses from Miami. It has published fixed-price offers and a written quote for larger builds.

- Fiverr
- 5.0 · 127 reviews
- Own product
- Workspace369
- Fixed-price offers from
- $450
Same fixed prices wherever you are
Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.
- App Fix Ticketfrom $450One reproducible bug in an existing mobile or web app, diagnosed and fixed.
- AI-Built App Rescuefrom $450A Lovable, Bolt or Cursor app checked end to end in 3 days, then its worst problems fixed at a fixed price.
- Web App MVP Sprintfrom $6,000A scoped web app MVP in Vue/Nuxt or React, with a fixed quote after a $450 written scoping.
- Monthly Dev Subscriptionfrom $1,495/monthOne development request at a time, most back in about 2 business days. Pause or cancel anytime.
Serving South Florida
A South Florida developer for Fort Lauderdale
App369 LLC is a Florida company based in Miami. Simon works remotely and asynchronously on Eastern Time.
Fort Lauderdale offices can add an AI receptionist, missed-call text back or AI automation for one repeated task.
Why App369
Why Fort Lauderdale Businesses Choose App369
What Fort Lauderdale teams should know before working with App369.
Serving Fort Lauderdale, Hollywood, Pompano Beach, and Broward County
Focus on marine, yachting, and luxury industries
Understanding of South Florida business culture
Founder-led studio based in Miami, Florida
Nearby Markets
Related Markets Around Fort Lauderdale
Nearby cities and the county hub, for context on neighboring markets.
What Simon builds
Software Development Services in Fort Lauderdale
From Las Olas to the beach, we deliver innovative software for Fort Lauderdale's dynamic business community.
Mobile Apps
iOS and Android apps built with Flutter from one codebase, from concept to App Store launch.
- iOS & Android
- Cross-Platform
- App Store Optimization
- Maintenance & Updates
Web Development
Fast websites and web applications, built for search and for phones first.
- Custom Design
- E-Commerce
- SaaS Applications
- SEO Optimization
Custom Software
Internal tools, integrations and back-office systems engineered around how your team already works.
- Enterprise Development
- API Integration
- Cloud Migration
- Technical Consulting
How it works
The 4-Phase Development Process
A written scope and four clear phases keep Fort Lauderdale projects predictable.
Discovery
Understanding your vision, goals, and market requirements through stakeholder interviews and competitive analysis.
Design
Creating clear UI/UX with interactive prototypes you can click through before the build starts.
Development
Building with Flutter, Vue.js, Node.js, and GCP using 2-week Agile sprints with weekly milestone reviews.
Launch
Deployment to production with crash and uptime monitoring and ongoing maintenance.
Technologies
- Flutter
- TypeScript
- Node.js
- GCP
- Firebase
- Vue
- JavaScript
- Python
Questions
Frequently Asked Questions
Is App369 a Fort Lauderdale software developer?
Yes, remotely: App369 LLC is a Florida company based in Miami that works with businesses in Fort Lauderdale and across Broward County. There is no Fort Lauderdale office; projects run remotely on Eastern Time, with written updates and shared progress builds.
What does App369 build for Fort Lauderdale businesses?
iOS and Android apps, web apps and customer portals, backends and APIs, internal tools that replace spreadsheets, AI features such as assistants and document extraction, and Stripe or Shopify integrations. Simon also takes over and fixes apps that another developer or an AI builder started.
How much does an app developer in Fort Lauderdale cost with App369?
It depends on the offer: fixed-price offers have published prices, shown on this page and paid in full before work starts. Mobile and web app starting prices are on the fee structure page. Larger builds start with a paid scoping and are quoted in writing.
Which technologies does App369 use?
The stack the project needs, such as Flutter, Swift, React or Vue with Node.js, Firebase or Supabase for backends and APIs, Stripe and Shopify for payments and commerce, and large language model APIs for AI features.
How long does a typical project take?
It depends on scope. As a rough guide, a marketing website takes 4-8 weeks, a web application 2-4 months, and a mobile app 3-6 months. Every Fort Lauderdale project starts with a written scope and milestone plan, so you know the timeline before any build work starts.
Do you provide ongoing support?
Yes. After launch App369 offers maintenance that covers bug fixes, iOS and Android OS updates, security patches, dependency upgrades and small feature work, so your Fort Lauderdale app keeps working as the platforms change.
Can you work with existing projects?
Yes. Simon takes over existing codebases, especially Flutter and Firebase apps, for code audits, bug fixes, new features and migrations. Fort Lauderdale businesses with an app that stalled or a developer who left can start with an audit before committing to a larger build.

Your Development Partner
Simon Dziak
Simon Dziak founded App369 and runs every project from scoping to launch: mobile and web apps, backends and APIs, AI features and agents, and Stripe and Shopify integrations. Simon also built and runs Workspace369, a client-management platform for freelancers and small businesses.
Start Your Fort Lauderdale Project
Fiverr reviews / 95 on app work
What buyers said about working with Simon
“I am so happy that this app finally came to life. Szymon’s work was outstanding and professional. He was prepared with solutions for problems I had and even did more than I asked for. I already hired Szymon for more projects and am excited for the future.”
A buyer in the United States, October 2020. App development on Fiverr “Can’t wait to use and work with this app. Very excited to bring it to market. Szymon took care of all the details I asked for and over delivered. Would recommend him to anyone.”
A buyer in the United States, October 2020. App development on Fiverr “Szymon did an amazing job and even over preformed my original expectations. He knew exactly what I needed and delivered in a professional manner. Thank you. Will be returning here for sure!!”
A buyer in the United States, October 2020. App development on Fiverr
Read the whole story
- Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store (Mark, United States)
- A large custom app build, delivered on the back end and the front end (A buyer in the United States)