AI & TechnologyOctober 21, 20268 min
AI Search Visibility Audit: What It Checks and Costs
What a good AI search visibility audit checks, the red flags to avoid, what GEO audits cost in 2026, and a DIY checklist you can run yourself this week.
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.
AI & TechnologyOctober 21, 20269 min
Hire Someone to Finish Your Vibe-Coded App (2026)
Lovable, Bolt, Cursor, Replit or v0 app mostly built? Compare freelancer, agency, builder partner and fixed price on cost and risk, plus 10 questions to ask before you hire.
AI & TechnologyOctober 21, 20267 min
How to Show Up in Google AI Overviews (2026)
What Google says it takes to be cited in AI Overviews and AI Mode: no special markup, snippet eligibility, snippet controls, Google-Extended and reporting.
AI & TechnologyOctober 21, 20266 min
Supabase Security Review Before Launch (2026)
What to check in a Supabase project before launch: keys, Row Level Security, views, storage, Edge Functions, auth email and backups, with a fix-first order.
AI & TechnologyOctober 21, 20268 min
v0 App Rescue: 8 Problems to Fix Before Launch
Your v0 app runs on Vercel with data in Supabase or Neon. The 8 problems to check before launch, from the React2Shell patch to exposed keys and rollbacks.
AI & TechnologyOctober 21, 20268 min
Base44 App Rescue: 8 Problems to Fix Before Launch
Your Base44 app works in the editor, but real users are coming. The 8 problems to check first, from open sign-up and data rules to backend functions.
AI & TechnologyOctober 20, 20267 min
llms.txt: What It Does and Doesn't Do (2026)
What llms.txt is, who actually reads it, and what it won't do for your rankings or AI citations, from the proposal itself and from what Google, OpenAI, Anthropic and Perplexity document. Plus how to write one in under an hour.
AI & TechnologyOctober 20, 20269 min
How to Get Your SaaS Cited by ChatGPT and Perplexity
How to get your SaaS cited by ChatGPT and Perplexity: which crawlers to allow, how to test that they can reach you, what to put on your pages, and how to measure citations, all from the vendors' own docs.
AI & TechnologyOctober 20, 20268 min
AEO vs GEO vs SEO: What Each One Changes (2026)
AEO, GEO and SEO explained in plain English: where the terms come from, what Google, OpenAI, Perplexity and Bing actually say, and what each one changes on your site.
AI & TechnologyOctober 21, 20269 min
Cursor App Rescue: 7 Problems to Fix Before Launch
Built with Cursor and working on your machine? The 7 problems to check before real users arrive, from leaked keys and open API routes to fake packages.
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.