Development CostsNovember 9, 20268 min
Android App Development Cost (2026)
Android app development cost in 2026, worked from the BLS median developer wage, plus Google Play costs only Android has: a 25 USD fee, testing, API updates.
My story
Background
I started writing code at 14 and never stopped. After more than a decade of building software for startups and enterprises across healthcare, fintech, e-commerce, and education, I founded App369 to help businesses turn ambitious ideas into production-ready applications.
My approach is hands-on. I still write code daily, review every architecture decision, and stay deeply involved in every project we deliver. I believe the best software comes from teams where leadership understands the technical details, not just the business strategy.
Based in South Florida, I work with clients across the United States and internationally, building mobile apps, web platforms, and custom software that drives real business outcomes.
What I build
Areas of expertise
Deep technical expertise across the full software development lifecycle.
Mobile Development
Cross-platform and native mobile apps for iOS and Android. Built with Flutter, Swift or Kotlin, chosen to fit the product.
- Flutter
- Swift
- Kotlin
- Dart
Web Development
Full-stack web applications, SaaS platforms, and progressive web apps. Building performant, SEO-optimized web experiences with modern JavaScript frameworks.
- Vue.js
- Nuxt
- React
- TypeScript
Cloud & Backend
Scalable backend architectures, API design, and cloud infrastructure. Experience with real-time databases, serverless functions, and enterprise-grade deployments.
- Node.js
- Firebase
- Google Cloud
- Python
Industries
Industry experience
Hands-on project leadership across high-regulation and high-growth verticals.
Healthcare
HIPAA-compliant patient portals, telehealth platforms, EHR integrations, and clinical workflow tools. Understanding of healthcare data regulations and interoperability standards including HL7/FHIR.
Fintech
Payment processing apps, digital banking platforms, investment portfolio tools, and insurance claims systems. Experience with PCI DSS compliance and financial data security.
E-Commerce
Custom storefronts, Shopify integrations, marketplace platforms, and mobile commerce apps. From product catalogs to checkout flows to inventory management.
Education
Learning management systems, student engagement platforms, virtual classroom tools, and EdTech SaaS products. Accessible, inclusive design for diverse learner populations.
On video
Watch Simon
Simon's App369 intro (October 2026, 1 minute), and "Is App Development For You?", from his YouTube channel in April 2024 (8 minutes).
Writing
Recent articles
Insights on app development, technology strategy, and the software industry.
Development CostsNovember 8, 20268 min
Custom CRM Development Cost (2026): Agency Prices Compared
Custom CRM development cost in 2026: agencies publish $15,000 to $100,000 for a first version. App369 builds one from $6,000 after a $450 written scoping.
AI & TechnologyNovember 8, 20268 min
How Much Does Firebase Cost in 2026? Prices and 3 Examples
What Firebase costs in 2026: Spark and Blaze free limits, Firestore, Cloud Functions, Hosting and Auth prices from Google, and worked bills for 3 app sizes.
AI & TechnologyNovember 8, 202610 min
How to Build an MCP Server in 2026: Step by Step with Code
Build an MCP server over your existing REST API with the TypeScript SDK v2: tools, Streamable HTTP, Inspector tests and OAuth, on the 2026-07-28 spec.
AI & TechnologyNovember 2, 20266 min
AI API Errors: 7 OpenAI, Claude, Gemini and MCP Fixes (2026)
AI feature broken by a 401, 429 or 529, or an MCP connector that won't connect? 7 OpenAI, Anthropic, Gemini and MCP errors, what each means and how to fix it.
AI & TechnologyNovember 2, 20267 min
App Store and Google Play Rejections: 13 Fixes (2026)
App rejected by Apple or Google Play? 13 rejections, from Guidelines 2.1, 4.3 and 5.1.1 to Play's Data safety form and 12-tester rule, and how to fix each.
AI & TechnologyNovember 2, 20266 min
Expo and Flutter Build Errors: 12 Fixes (2026)
Expo or Flutter build failing, or the app crashes after release? 12 mobile build errors, from EAS builds and pod install to TestFlight and Gradle, and each fix.
AI & TechnologyNovember 2, 20267 min
Firebase Auth Errors: 9 Sign-In Fixes (2026)
Firebase sign-in broken? The 9 common Firebase Auth errors on web, Android, iOS and Flutter, from invalid-credential to unauthorized-domain, and each fix.
AI & TechnologyNovember 2, 20267 min
Firestore and Cloud Functions Errors: 11 Fixes (2026)
Missing or insufficient permissions, a query that requires an index, a quota error or a Cloud Function that fails? 11 Firebase backend errors and their fixes.
AI & TechnologyNovember 2, 20266 min
Lovable, Bolt and Replit Errors: 7 Fixes (2026)
Lovable site blank after publish, a Bolt build that fails on Netlify, GitHub sync stuck or data gone after a Replit redeploy? 7 AI app builder errors, fixed.
Start here
Work with Me
Have a project in mind? I personally read every inquiry and reply by email, usually within one business day. Let's discuss your goals, technology options, and how App369 can help.
You can also hire me through Upwork (opens in a new tab).