app development — marbella & costa del sol

App development in Marbella — for everything you still do by hand.

Booking engines, client portals, dashboards and AI tools — scoped in one 15-minute call, built end-to-end by one developer, priced fixed before work starts. If your business runs on spreadsheets and WhatsApp threads, this is what replaces them.

available for projects — august · marbella · --:--:--

App development in Marbella usually means one of two things: an agency quote for a native app you don't need, or another year of running the business on spreadsheets because custom software feels out of reach. There's a third option. I build custom web apps for Costa del Sol businesses — booking engines, client portals, admin dashboards, AI automations — scoped in a 15-minute call, quoted fixed on the spot, and built end-to-end by the person you talked to.

This isn't theory. For Hotel Viktoria I built Menu Atelier, a trilingual menu studio where AI turns the chef's PDF into a ready weekly menu template in under a minute. For a consular service in Miami: a trilingual client portal with a document vault, six-step case tracking, appointment booking and Stripe billing, plus the admin dashboard behind it. Swiss Graph runs an AI market-intelligence SaaS with its own chat agent and paid subscriptions. Different industries, same pattern — manual work in, working software out.

Everything I build is a web app. It runs on any phone, tablet or laptop from one codebase, installs to the home screen like a native app, and skips the app store entirely. No review queues, no double codebase for iOS and Android — which is most of the reason native quotes run so high. The stack is modern — Next.js, React, Supabase, Stripe, LLM pipelines where AI actually earns its place — and everything ships fast-loading, mobile-first and SEO-ready.

( 01 )

What you get

Client portals

Give clients one login instead of forty email threads. Document uploads, status tracking, appointment booking, billing — the Miami consular platform runs all of it in three languages, with a document vault and Stripe payments behind an admin dashboard. Client portal development that replaces your inbox as the system of record.

Booking systems

Availability rules, multi-step wizards, confirmations, WhatsApp follow-up — a booking system built around how you actually take bookings. Prisma Clinic Marbella runs patient booking through a multi-step wizard in three languages, with WhatsApp wired in. Fewer phone calls, fewer no-shows, every booking in one place.

Admin dashboards

See the whole business on one screen. Custom dashboard development means the dashboard matches your operation — not the other way around. Occupancy, leads, cases, revenue, whatever you currently dig out of spreadsheets — pulled live, filterable, and readable on a phone between meetings.

Payments & billing

Stripe wired in properly — one-off payments, subscriptions, refunds, receipts. Swiss Graph runs paid subscriptions on it; the Miami consular platform bills clients through Stripe with a full admin dashboard behind it. You stop chasing bank transfers over WhatsApp and start getting paid when the work is booked.

Document handling

Contracts, PDFs, certificates, menus — uploaded, stored, versioned and found again. The consular platform runs a full document vault; Menu Atelier reads a chef's PDF and turns it into a ready weekly menu template in under a minute. If paper is your bottleneck, this is the fix.

Integrations & AI

Your app should talk to the tools you already run on — WhatsApp, calendars, payment providers, email. Where AI genuinely saves hours, I wire it in: Unhosted AI runs eight specialized research agents, Swiss Graph ships its own AI chat agent. Automation that pays for itself — not AI for the sake of it.

( 02 )

Proof, not promises

6.3M+

google impressions

209K

clicks from search

25+

sites shipped

5+

years of experience

Search traffic measured in Google Search Console across client properties. Fast sites rank — that's the whole trick.

Most web app development for Costa del Sol businesses happens over email with someone three time zones away. I'm based in Marbella — when scoping a booking engine or portal, I can sit in your clinic, hotel or agency from Estepona to Málaga and watch how the work actually flows before quoting it. And this coast runs multilingual by default: I've shipped projects in seven languages, so your English, Spanish, German and Scandinavian clients get the same experience. Remote works too — the consular platform ran from Miami, Swiss Graph from Switzerland.

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First call to live, in days

Apps take longer than landing pages to build — but the process starts the same way. One 15-minute call, and you leave it with a fixed price and a delivery date that don't move. Here's how the first days run, whether it's a one-page site or a full platform.

Day 0

The call

A 15-minute chat about your business and what you need. You get a fixed price and a delivery date on the spot — no proposals, no waiting.

Day 1

Design & build

I design and build in one pass. You get a live preview link the next day — a real website you can click, not a PDF mockup.

Day 2

Your feedback

One focused revision round, applied straight to the live preview while we talk. Most changes happen within the hour.

Day 3

Launch

Domain, SEO, analytics, WhatsApp — wired and live. Simple landing pages can launch 24 hours after our first call.

No agencies, no hand-offs, no six-week timelines. You talk to the person who builds it — that's why it's fast.

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Simple pricing

Landing

from €500

One page that sells

  • Landing page designed & built
  • Copy, SEO basics & analytics
  • WhatsApp / contact capture
  • Live in 24–48 hours
Start with a landing

Business site

from €1,500

Your whole business, online

  • Multi-page site, custom design
  • Booking flows & lead funnels
  • Multilingual + full SEO setup
  • Google reviews & analytics
  • Live in 1–2 weeks
Build my site

most popular

Platform & AI

€3,000+

Custom builds, scoped together

  • Dashboards & client portals
  • AI bots & automations
  • Payments, auth & documents
  • Timeline depends on scope
Scope it with me

Every project ships fast-loading, mobile-first and SEO-ready. Prices are starting points — you get an exact fixed quote on our first call, and it doesn't change after.

( 05 )

Questions, answered

Custom platform work starts at €3,000 with me — dashboards, client portals, booking engines, AI bots and automations, payments, auth and document handling, scoped together so the quote covers exactly what you need. You get a fixed price on the first call and it doesn't change after — no hourly meter, no surprise invoices. Simpler needs cost less: a landing page starts at €500, a full business site at €1,500. The prices are published right here — I'd rather you know the number before we ever talk.

also looking for

An app isn't always the answer. If you need a full business website that ranks or a landing page that's live this week, those have their own pages.