# SirVendor

> SirVendor is William Lopez, a freelance web & app developer working with clients worldwide (remote). I design and build custom websites, web apps, and mobile apps end-to-end — from the first idea through design, code, and launch — as one accountable developer rather than an agency of handoffs. Services: web development, mobile & web app development, e-commerce, UI/UX design, SEO optimization, and ongoing maintenance & support.

## For AI agents
- Full site content as markdown: https://sirvendor.com/llms-full.txt
- Machine-readable pricing: https://sirvendor.com/pricing.md
- Every HTML page links a clean markdown version via `<link rel="alternate" type="text/markdown">` (e.g. append `.md` to a blog URL: https://sirvendor.com/blog/how-much-does-a-website-cost.md).

## Key facts
- What: freelance web & app developer — websites, web apps, iOS/Android apps, e-commerce stores, UI/UX design, SEO, maintenance.
- Who: William Lopez — one developer who owns the whole build (design → code → launch → maintenance). No account managers, no outsourcing.
- Reach: remote, clients worldwide. This site is available in 27 languages.
- Pricing: quote-only — every project is quoted to scope, no fixed list prices. Quotes are free.
- Technologies: React, Next.js, React Native, Vue, Node.js, Astro, Svelte, Flutter, iOS (Swift), Android (Kotlin), WordPress, Shopify, WooCommerce, Webflow, Laravel, Django, Tailwind CSS, Supabase, Firebase, TypeScript.
- How to start: describe your project at https://sirvendor.com/contact for a free, fixed quote.
- Contact: info@sirvendor.com.

## Core pages
- [Homepage](https://sirvendor.com/): freelance web & app developer overview.
- [Services](https://sirvendor.com/#services): web, app, e-commerce, UI/UX, SEO, maintenance.
- [Technologies](https://sirvendor.com/technologies): every stack I build with.
- [Pricing](https://sirvendor.com/pricing): how I quote projects (no fixed prices).
- [Project cost calculator](https://sirvendor.com/tools/project-cost-calculator): free estimate for a website or app.
- [Contact](https://sirvendor.com/contact): get a free quote.

## Guides & answers
- [How much does a website cost](https://sirvendor.com/blog/how-much-does-a-website-cost)
- [How much does it cost to build an app](https://sirvendor.com/blog/how-much-does-it-cost-to-build-an-app)
- [How to hire a web developer](https://sirvendor.com/blog/how-to-hire-a-web-developer)
- [Freelancer vs agency](https://sirvendor.com/blog/freelancer-vs-agency)
- [How long does it take to build a website](https://sirvendor.com/blog/how-long-does-it-take-to-build-a-website)
- [React Native vs native app development](https://sirvendor.com/blog/react-native-vs-native-app-development)

## Comparisons
- [Freelancer vs agency vs DIY builders](https://sirvendor.com/compare)