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Services

Product end-to-end,
no middlemen.

Mobile, web, and desktop apps. Practical AI consulting. One person who discovers, designs, builds, and ships.

01 M

Mobile apps

Apps people open every day

Mobile is my home turf. I design, code, and ship native and cross-platform apps — picking the tech for the problem, not for the trend.

Flutter for a fast MVP or when you need iOS + Android on a single codebase. Native Swift or Kotlin when performance, hardware integration, or platform conventions demand it. There's no "universal stack" — there's the stack that fits your case.

What I include

Flutter · Fast MVP One codebase, two stores. Ideal to validate an idea or cover both platforms on a tight budget.
Native iOS Swift + SwiftUI when you need deep system integration, guaranteed 60fps, or your market is Apple-first.
Native Android Kotlin + Jetpack Compose for Android-first (LATAM, retail, workforce), Material You, or SDK features Flutter doesn't cover.
Stores + support I publish to the App Store and Google Play, answer reviews, and ship updates. I don't hand you an APK and disappear.

Stack

FlutterSwiftSwiftUIKotlinJetpack ComposeFirebaseRoom
App published in the App Store and Google Play, ready for real users
Where I applied it

Pepinillo (Android, Jetpack Compose) and Películas (Android, Kotlin) live on Google Play. Solennix on iOS, Android, and web — real event management with CRM and inventory.

See real projects
02 W

Web apps

Sites that load fast and convert

Web is marketing, product, and sales in a single artifact. I build experiences that load in under a second, rank on Google, and convert visitors into customers.

Astro for content or marketing sites. Next.js when there's SSR or complex state. Plain React when it's truly a SPA. No WordPress — that ship sank. Taking you there means broken plugins and 2012 speed.

What I include

Marketing sites Astro + Tailwind. 95+ Lighthouse on mobile, technical SEO, under 1s load on an average connection.
Apps with state Next.js + tRPC + Postgres. Auth, dashboards, internal portals, e-commerce with custom checkout.
Headless CMS Sanity/Contentful/Decap + Astro or Next front-end. Happy editors, happy devs, acceptable build time.
WP migration WordPress → modern stack without losing SEO. 301 redirects, sitemap, schema markup, post-migration monitoring.

Stack

AstroNext.jsReactTypeScriptTailwind CSStRPCPostgreSQLVercel
Site deployed, monitored, and with an editing guide for you
Where I applied it

This very site. Astro + oklch + Google Fonts + a Go backend for the form. Custom design tokens, Intersection Observer animations, performance-first.

See the site (you're on it)
03 D

Desktop software

When the web isn't enough

Desktop is niche, but brutal when it fits. Offline point-of-sale, internal tools, apps that handle large files, workflows that can't take web latency.

Tauri + Rust is my default for new desktop — 5–15MB apps with native performance, versus the 120MB Electron apps that take half a minute to start. Native (Swift, Kotlin) when deep system integration is needed. Electron only if you need to share code with an existing web app.

What I include

Tauri + Rust My 2025 default. ~10MB bundles, millisecond cold start, minimal memory. Web stack inside, native binary outside.
Native macOS SwiftUI for apps that feel like Apple made them. Spotlight, Shortcuts, and Continuity integration.
Internal tools Point-of-sale, inventory management, tools for your operation. Sometimes the best app isn't a web app.
Distribution Code signing, auto-updater, signed installers for Windows, macOS, and Linux. No "unknown developer" warnings.

Stack

TauriRustSwiftSwiftUI.NETElectron
Signed installers for Windows, macOS, and Linux — ready to ship
Where I applied it

Pepinillo Desktop (in development, Tauri + Rust) — desktop version with sync and focus widgets. Internal tools for event workflows.

See what's in progress
04 A

AI consulting

Practical AI, no smoke

AI is everywhere and half of it is marketing. I help you separate what's useful from what's hype, and integrate what's worth it into your real workflow.

I'm not here to sell you "digital transformation with AI". I'm here to find where you can save weekly hours with a well-integrated LLM, or where an honest chatbot can handle 80% of recurring questions. The rest is friction disguised as innovation.

What I include

Process audit I look at your flows and tell you what makes sense to automate with AI and what doesn't. Two days of work. No commitment afterwards.
Honest chatbots LLM + your data with RAG. They answer what they know and escalate what they don't. No hallucinations loose on your customers.
Automation Email classification, meeting summaries, data extraction from PDFs. Tasks where an LLM beats a person 30x over.
AI in your product An AI feature integrated into your existing app. From semantic search to assisted content generation.

Stack

OpenAIAnthropicLangChainPythonVector DBsRAG
AI integrated into your stack, with clear limits and cost monitoring
Where I applied it

Serene (in development) — a gratitude journal with conscious AI for anxiety and burnout. AI with defined limits: no diagnosing, no hallucinating, no replacing a therapist.

See Serene in development
How I work

A process with
few surprises.

Visible deliveries every two weeks. Direct channel with whoever writes the code. No middlemen losing context — no surprises at the end.

01

Discover

I listen to your idea, read your market, and build a roadmap with realistic dates.

  • 45-min call
  • Competitive analysis
  • KPI definition
  • Technical proposal and budget
02

Design

Wireframes first, navigable prototype second, documented design system at the end.

  • Digital paper wireframes
  • Figma prototype
  • UI/UX design
  • Design tokens and guide
03

Build

2-week sprints with demos every Friday. Code in your repo from day one — no black box.

  • Weekly live demo
  • Code in your repo
  • Tests on the critical path
  • CI/CD configured
04

Launch

QA, store publishing, metrics connected. 30 days of post-launch support included.

  • Cross-device QA
  • Store publishing
  • Analytics and monitoring
  • 30 days of included support
Full stack

Technologies I use every day.

SwiftSwiftUIKotlinJetpack ComposeFlutterReact NativeNext.jsReactAstroTypeScriptTailwind CSSPostgreSQLTauriRustElectronOpenAILangChainPythonTensorFlowFirebaseVercelNode.js
Let's talk

Tell me your idea.
I reply the same day.

No 20-field forms, no soap operas. Write me in 2 minutes, I reply in under 24 hours with concrete next steps.

or write to hola@creapolis.dev