# Miami app developer with published prices > Miami app developer Simon Dziak builds and fixes mobile apps, web apps and AI features at published prices: a $450 diagnosis, web app MVPs from $6,000. Canonical: https://app369.com/locations/miami-florida/ App369 is one Miami app developer, Simon Dziak, with prices published before you hire. A bug fix starts with a $450 diagnosis, a whole-app Launch Check is $450, a web app MVP starts at $6,000, and a monthly dev subscription starts at $1,495 a month. [**Get Started **→](https://app369.com/contact/) ## **Same fixed prices wherever you are** Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed. - [**App Fix Ticket**from $450One reproducible bug in an existing mobile or web app, diagnosed and fixed.](https://app369.com/fixed-price/flutter-firebase-bug-fix/) - [**AI-Built App Rescue**from $450A Lovable, Bolt or Cursor app checked end to end in 3 days, then its worst problems fixed at a fixed price.](https://app369.com/fixed-price/ai-app-rescue/) - [**Web App MVP Sprint**from $6,000A scoped web app MVP in Vue/Nuxt or React, with a fixed quote after a $450 written scoping.](https://app369.com/fixed-price/web-app-mvp/) - [**Monthly Dev Subscription**from $1,495/⁠monthOne development request at a time, most back in about 2 business days. Pause or cancel anytime.](https://app369.com/fixed-price/monthly-dev-subscription/) **FL** Based in Miami, Florida **ET** Eastern Time working hours **Fixed** Price in writing before work starts **1** Developer, from scoping to handover Home base ## **App369 is based in Miami** App369 LLC is a Florida company based in Miami. The work runs remotely and in writing on Eastern Time. Email [simon@app369.com](mailto:simon@app369.com), or see the [Miami app development companies compared](https://app369.com/blog/best-app-development-company-miami-florida-2026/). A Miami clinic, law firm or real estate office that misses calls after hours can have an [AI receptionist](https://app369.com/service/ai-receptionist/) answer one channel, the phone line, website chat or web forms, and book the appointment, built as the AI Feature or Agent Build at $2,500. [Speed to lead](https://app369.com/service/speed-to-lead/) texts back missed calls and routes new leads into your CRM through the API Integration at $1,200. For work your team repeats every day, [AI automation services](https://app369.com/service/ai-automation-services/) take on one task at a time, such as document extraction or email triage. AI receptionist ## An AI receptionist for Miami offices For Miami offices that miss calls: an AI receptionist answers the phone, website chat or web forms, asks your intake questions, books the appointment and logs every lead. Start with one channel or cover all three. Simon builds it on your own accounts at a fixed price, and you own it. - $2,500fixed ### **One channel** For a business that wants one front door answered first. [**What’s included**](https://app369.com/service/ai-receptionist/#plan-one-channel) [**Ask a question first**](https://app369.com/contact/?offer=offer11-ai-feature&ask=1) - $5,000fixed ### **AI Receptionist Build** For a clinic, law firm or office that wants every call, chat and form answered, booked and logged. [**What’s included**](https://app369.com/service/ai-receptionist/#plan-full-build) [**Ask a question first**](https://app369.com/contact/?offer=offer22-ai-receptionist-build&ask=1) - $297a month ### **AI Care plan** For keeping it accurate as your hours, prices and questions change. For a receptionist Simon built, on either tier. Cancel any time. [**What’s included**](https://app369.com/service/ai-receptionist/#plan-care) [**Ask a question first**](https://app369.com/contact/?offer=offer22-ai-receptionist-care&ask=1) Built for your field: - [**Real estate**](https://app369.com/service/ai-receptionist-for-real-estate/) - [**Law firms**](https://app369.com/service/ai-receptionist-for-law-firms/) - [**Property management**](https://app369.com/service/ai-receptionist-for-property-management/) - [**Insurance agencies**](https://app369.com/service/ai-receptionist-for-insurance-agencies/) Developer or agency ## **How does one Miami developer compare with Miami app agencies?** Clutch lists the top 10 Miami app firms with their own minimum project sizes and hourly rates, read November 8, 2026. On the same date, none of the 7 Miami agency pages that came up in a search for “miami app developer” published a price for app development. | Compared | **App369 (Simon Dziak)** | **Top 10 Miami firms on Clutch** | | --- | --- | --- | | **Who builds it** | One developer, Simon Dziak, from scoping to handover | Firms of 50 to 999 employees | | **Smallest project** | A $450 diagnosis, credited toward the $1,200 fix | $5,000+ to $50,000+ minimum project size | | **How you pay** | Fixed prices in writing before work starts | $25 to $49 or $50 to $99 an hour, as listed | | **Prices** | Published for every offer, with what is and isn’t included | Listed as a minimum project size and an hourly band | Sources, read November 8, 2026: [Clutch: Top App Developers in Miami](https://clutch.co/app-developers/miami) (each firm’s own listing). Agency pages checked for a published price: [Simform](https://www.simform.com/app-development-miami/), [Bitcot](https://www.bitcot.com/mobile-app-development-miami/), [Dogtown Media](https://www.dogtownmedia.com/iphone-app-developer-miami/), [TekRevol](https://www.tekrevol.com/app-developer-miami), [Trango Tech](https://locations.trangotech.com/app-development-miami/), [Appluex](https://appluex.com/), [Miami Mobile App Development](https://miamimobileappdevelopment.com/). ### **When is a Miami agency the better choice?** - You need several people working in parallel, such as designers, testers and a project manager, on a deadline one developer can’t meet. - You want regular meetings in person. App369 works remotely and in writing on Eastern Time, with no meetings in person. - You need round-the-clock on-call support. App369 is one developer working Eastern Time hours. Not included in App369’s fix and rescue offers: new features, rewrites, App Store approval guarantees, changes to your production data (fixes ship as pull requests you deploy), and your hosting, Supabase, Firebase or Stripe bills. Why App369 ## **Why Miami Businesses Choose App369** What Miami teams should know before working with App369. Serving Miami, Fort Lauderdale, West Palm Beach, and all of South Florida Understanding of Miami's diverse business landscape Focus on tourism, real estate, finance, and hospitality sectors Founder-led studio based in Miami, Florida Nearby Markets ## **Related Markets Around Miami** Nearby cities and the county hub, for context on neighboring markets. [County Hub

**Miami-Dade County**

App369 delivers app and web development across Miami-Dade County, Florida. Miami-Dade blends tourism, logistics, international trade, healthcare, real estate, and venture-backed startups that need multilingual, high-velocity digital systems.](https://app369.com/locations/miami-dade-county-florida/) What gets built ## **Software Development Services in Miami** Whether you're a Miami Beach startup or a Coral Gables enterprise, we deliver software that helps your business thrive in South Florida's competitive market. ### **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 Quoted in writing after scoping ### **Web Development ** Fast websites and web applications, built for search and for phones first. - Custom Design - E-Commerce - SaaS Applications - SEO Optimization from**$6,000** ### **Custom Software ** Internal tools, integrations and back-office systems engineered around how your team already works. - Enterprise Development - API Integration - Cloud Migration - Technical Consulting **$1,200** How it works ## **How a project runs, in 4 steps** A written scope and four clear phases keep Miami projects predictable. 2. 01 ### **Discovery** Understanding your vision, goals, and market requirements through stakeholder interviews and competitive analysis. 3. 02 ### **Design** Clear UI and UX with interactive prototypes you can click through before the build starts. 4. 03 ### **Development** Building in the stack the project needs, such as Flutter, Swift, React or Vue with Node.js, Firebase or Supabase, with progress shared in writing. 5. 04 ### **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 based in Miami?** Yes. App369 LLC is a Florida company based in Miami, and Simon Dziak is its one developer. Work runs remotely on Eastern Time, in writing, for clients in Miami and across the US. ### **Is there an app developer near me in South Florida?** Yes. App369 is based in Miami and works with businesses across Miami-Dade, Broward and Palm Beach County, including Fort Lauderdale, Boca Raton and West Palm Beach. Projects run remotely on Eastern Time, in writing, with no meetings in person. ### **Does App369 do software development in Miami?** Yes. Besides mobile apps, App369 builds custom software for Miami businesses: web apps, internal tools, backends and APIs, and Stripe billing. Larger builds start with a paid scoping and a written quote. ### **Is App369 a Shopify developer in Miami?** Yes, for speed and checkout work. The Shopify Speed & Checkout Tune-Up is $750: mobile speed and cart-to-checkout fixes on a duplicate theme, measured before and after. Other Shopify work is scoped first and quoted in writing. ### **Does App369 build AI automation for Miami businesses?** Yes. The AI Feature or Agent Build is $2,500: one LLM feature or agent wired into your app or tools, such as a reply drafter, a document extractor or an agent that calls your API, with an eval set that shows how well it works. Larger AI builds are scoped first and quoted in writing. ### **How much does a Miami app developer cost?** The top 10 Miami app firms on Clutch list minimum projects from $5,000+ to $50,000+ and rates of $25 to $99 an hour (read November 8, 2026). App369 publishes fixed prices: a $450 diagnosis credited toward a $1,200 fix, a $450 Launch Check, web app MVPs from $6,000, and API integrations at $1,200. ### **How long does a typical project take?** It depends on scope. An App Fix Ticket diagnosis and a Launch Check each take 3 business days, and a fix takes 5. Larger builds start with a written scope and milestone plan, so you know the timeline before any build work starts. ### **How does payment work?** Every offer is a fixed price in writing, paid in full before that step starts. Larger builds are quoted after a paid scoping, and each step starts only with your yes. ### **Can App369 take over an existing app?** Yes. App369 takes over existing codebases in Flutter, Swift, Kotlin, React, Vue, Firebase or Node.js for audits, bug fixes, new features and migrations. An app that stalled, or whose developer left, can start with a Launch Check before any larger commitment. ### **Is there support after launch?** Yes. The Monthly Dev Subscription starts at $1,495 a month for one app or website: bug fixes, small features, UI and copy changes, Stripe, Firebase or Supabase fixes, and dependency and store-build updates, one request at a time. ![Simon Dziak - Founder of App369](https://app369.com/.netlify/images?w=120&h=120&fm=webp&q=80&url=%2Fimages%2Fszymon.jpg) Your Development Partner ## [Simon Dziak](https://app369.com/about/) 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 Miami Project** [**Get in Touch **→](https://app369.com/contact/) [**View Pricing**](https://app369.com/fee-structure/) Fiverr reviews / 95 on app work ## **What buyers said about working with Simon** [**Read 126 of the 127 reviews **](https://app369.com/reviews/) - - - ### **Read the whole story** - [Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store](https://app369.com/case-studies/fiverr/mobile-apps-and-a-shopify-store-for-one-buyer/) (Mark, United States) - [A large custom app build, delivered on the back end and the front end](https://app369.com/case-studies/fiverr/large-custom-app-build/) (A buyer in the United States)