Builder based in Madrid. I make iOS/macOS apps, AI tools, and automation pipelines.
14 apps shipped or in review. Everything runs on a shared Swift foundation with full localization across 30+ languages.
| App | Platforms | What it does |
|---|---|---|
| Wattora | iOS · macOS | Real-time electricity spot prices with home screen widgets |
| eXpense | iOS · macOS · watchOS | Fast expense tracker with Apple Watch entry |
| Phygital Timer | iOS · macOS | Focus timer for physical + digital work sessions |
| AI API Usage Battery | macOS | Menu bar monitor for Claude and OpenAI token usage |
| PARA Mail Organizer | macOS | Email triage using the PARA method |
| Email Converter | macOS · iOS | Convert email formats (EML, MBOX, MSG, PDF) |
| Mbox Splitter Pro | macOS | Split and extract large MBOX archives |
| App | Platforms | What it does |
|---|---|---|
| CCSE Study Guide | iOS · macOS · visionOS | UK CSCS card construction safety exam |
| CSCS Quiz | iOS · macOS · visionOS | CSCS card exam practice with adaptive quizzing |
| Patente Nautica | iOS · macOS · visionOS | Italian nautical licence preparation |
| Quiz Patente | iOS · macOS · visionOS | Italian driving licence practice |
| Fischerprüfung | iOS · macOS · visionOS | German fishing licence exam prep |
| Einbürgerungstest | iOS · macOS · visionOS | German citizenship test preparation |
| Examen Civique | iOS · macOS · visionOS | French civic knowledge exam |
| Project | What it does |
|---|---|
| Claude Code Power Pack | 151 skills, lifecycle hooks, and coding rules for Claude Code |
Mobile/Desktop — Swift · SwiftUI · WidgetKit · visionOS
Backend/Automation — Python · TypeScript · Node.js · Cloudflare Workers
AI — Claude API · Anthropic SDK · prompt engineering
Infra — DigitalOcean · Cloudflare Pages · RevenueCat · Sentry