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CharlotteApp & Custom Software Development in Charlotte

Software development for Charlotte. We create powerful mobile apps and websites for the Queen City's thriving business community.

App369 is a founder-led software studio based in Miami, Florida. We build custom mobile apps, web platforms and AI features for businesses in Charlotte and beyond, working remotely on Eastern Time.

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Fiverr
5.0 · 126 reviews
Own product
Workspace369
Fixed-price offers from
$450

Fixed-price services

Same fixed prices wherever you are

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

FL
Based in Miami, Florida
ET
Eastern Time working hours
50/50
Upfront and on delivery
1
Codebase for iOS, Android and web

Why App369

Why Charlotte Businesses Choose App369

What Charlotte teams should know before working with App369.

Serving Charlotte, Mecklenburg County, and the Carolinas

Focus on banking, finance, and motorsports tech

Understanding of Charlotte's banking capital status

Focus on Southeast business environment

What we build

Software Development Services in Charlotte

From Uptown to South End, we deliver innovative software for Charlotte's growing business landscape.

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
from $9k

Web Development

Fast websites and web applications, built for search and for phones first.

  • Custom Design
  • E-Commerce
  • SaaS Applications
  • SEO Optimization
from $6k

Custom Software

Internal tools, integrations and back-office systems engineered around how your team already works.

  • Enterprise Development
  • API Integration
  • Cloud Migration
  • Technical Consulting
from $1.2k

How it works

Our 4-Phase Development Process

A written scope and four clear phases keep Charlotte projects predictable.

  1. Discovery

    Understanding your vision, goals, and market requirements through stakeholder interviews and competitive analysis.

  2. Design

    Creating clear UI/UX with interactive prototypes you can click through before we build.

  3. Development

    Building with Flutter, Vue.js, Node.js, and GCP using 2-week Agile sprints with weekly milestone reviews.

  4. 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

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 Charlotte 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 we offer maintenance that covers bug fixes, iOS and Android OS updates, security patches, dependency upgrades and small feature work, so your Charlotte app keeps working as the platforms change.

What's your pricing model?

App369 uses project-based pricing with a 50/50 payment structure: 50% upfront and 50% on completion. Current ranges are published on our fee structure page, and smaller fixed-price packages are available for well-defined work.

Can you work with existing projects?

Yes. We take over existing codebases, especially Flutter and Firebase apps, for code audits, bug fixes, new features and migrations. Charlotte businesses with an app that stalled or a developer who left can start with an audit before committing to a larger build.

What technology do you use?

Mostly Flutter for iOS, Android and web apps from one codebase, Firebase and Google Cloud for backends, and Vue/Nuxt for websites. For AI features we integrate large language models for assistants, document extraction and automation.

Simon Dziak - Founder of App369

Your Development Partner

Simon Dziak

As founder of App369, I personally oversee every project we take on, from scoping to launch. I build with Flutter, Firebase and Google Cloud, and I also built and run Workspace369, a client-management platform for freelancers and small businesses. Based in Miami, Florida, we serve clients across Charlotte and nationwide.

Start Your Charlotte Project

Get in Touch View Pricing

Fiverr reviews / 95 on app work

What buyers said about working with Simon

All 126 reviews
  • “Fantastic service and quality matches the price. I decided to a higher rate for development and Szymon exceeded my expectations. Thanks”
    Mark, United States, September 2021. App development on Fiverr
  • “Szymon was able to answer all the questions I had about this project. It was great to walk through all the details with him.”
    Rebecca, United States, August 2021. Custom order on Fiverr
  • “The finest person I've ever had to educate me and aid me with my app's launch. When it comes to assisting, he is very friendly, educated, and patient. I would suggest this individual for any job! It surpassed all of my expectations! If I had the option, I would have given more stars. Choose Szymon to help you instead of looking anyplace else; you will not be disappointed. Szymon thank you for all the help!!!”
    Dustin, United States, July 2021. Custom order on Fiverr

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