I've independently designed, built, and shipped 26 apps to the App Store - spanning productivity, health, education, games, and utilities - handling everything from UI/UX design to release.
Privacy-first AI assistant with fully on-device processing.
A privacy-first AI assistant that runs entirely on-device - no servers, no data leaving your device. Built with local LLM inference, streaming responses, conversation management, and offline-first AI workflows using Swift Concurrency, with memory and performance tuned in Instruments.
macOS app for managing AI agent skills and workflows.
Mission control for AI coding-agent skills on macOS: search, edit, group, and sync rules and prompts for Claude Code, Cursor, Windsurf, and more. Open source and under active development - not yet on the App Store.
Build algorithm fluency for coding interviews.
Focused practice for coding interviews: essential problems across arrays, strings, hash tables, two pointers, sliding windows, stacks, binary search, linked lists, trees, graphs, and dynamic programming - each with the prompt, intuition, pseudocode, Swift solution code, and complexity analysis.
Learn HTML, CSS & JavaScript by doing.
A hands-on way to learn web development. Guided Academy lessons in HTML, CSS, and JavaScript with fully visible, editable source code - edit the code and see the result update instantly, right on your device.
Swiss art, photography, and heritage in one offline guide.
Discover Switzerland through art, photography, and cultural heritage: over 6,000 artworks and 3,400 historic photographs from the Swiss National Library, SIK-ISEA, and swisstopo, browsable by artist, era, canton, color, and subject. On-device narration with synced transcripts, guided looking prompts, themed tours, heritage sites on a map, and your own curated collections. No account, no ads, no tracking - in German, English, French, and Italian.
Live Swiss pollen and air quality, matched to your symptoms.
Keep an eye on pollen concentrations and air quality across Switzerland with live data from automatic monitoring stations. Build a personal pollen profile, get a respiratory risk score, log symptoms and medication in a diary, and receive alerts when levels cross your thresholds. Guidance on the best hours for outdoor activity and when to open the windows, based on where you are. Data from MeteoSwiss, FOEN/NABEL, and swisstopo. General health and planning information only - not a medical device.
Scan a room and check the furniture fits before you buy.
Scan a room with LiDAR or type in the measurements by hand, then arrange furniture at true scale to spot the problems before you buy or move. Room design tools, clearance checks, project planning, and an AR walkthrough on supported devices. Everything is processed on device.
A native macOS API client - no account, no cloud, no telemetry.
A native macOS client for building and testing APIs: HTTP requests with JSON, XML, and GraphQL bodies, plus WebSockets and Server-Sent Events. Browse GraphQL schemas by introspection, import from cURL commands and Postman collections, and export to several formats. Authentication covers OAuth 2.0 with PKCE, Bearer tokens, and certificates. Run collections with assertions and response extraction, monitor endpoints from the menu bar, mock whole collections locally, and compare latency or search JSON paths. No account, no cloud sync, no telemetry - workspaces are local JSON files and credentials stay in the Keychain.
Learn chess with lessons, puzzles, and an offline opponent.
Learn chess from the ground up: lessons on the pieces and rules, tactical puzzles with a daily streak, games against the computer at a range of difficulty levels, and progress tracked through ratings and achievements. Works entirely offline.
Python, robots & logic for curious kids.
Turns coding and AI into a hands-on adventure for kids: guide Pix through puzzles, train tiny machine learning models, write real Python, and build your own levels - practicing sequencing, loops, variables, debugging, sorting, searching, and the ideas behind modern computing.
Private, offline file-to-Markdown converter for Mac.
Turns documents into Markdown on your Mac with no cloud service or account. Drop in a PDF, DOCX, PPTX, HTML page, or spreadsheet, review the extracted structure in a clean preview, tidy it up with cleanup options, and export.
Private news & feed reader without algorithmic noise.
A calm, focused way to follow the web on your own terms. Follow RSS, Atom, and JSON feeds in one place, import and export subscriptions with OPML, and keep up with the stories that matter - built for readers who want control, not another social timeline.
Create, save & share codes - fast.
A fast QR code, barcode, and text scanner built for everyday work. Scan live with the camera, import from your photo library, or batch multiple results in one session - then copy, share, save, or export each result from a clean detail view.
Privacy-first AI document scanner & organizer.
Point your camera at any document, receipt, or product label - SnapSort’s on-device AI recognizes what you’re scanning and automatically files it in the right category. No manual sorting, no cloud, no accounts.
App blocking + audio engineered for deep flow.
Not just a timer - a system designed to induce and sustain flow state. Combines app and website blocking built on Apple’s native Screen Time API with psycho-acoustic audio engineering to take willpower out of the equation.
Quick mood check-ins that reveal patterns.
Log your mood in seconds, add notes and tags when you want more context, and come back to a clean personal journal that makes your days easier to review - designed for quick daily check-ins and deeper reflection alike.
Mindfulness, guided breathing & calm.
A mindfulness companion for navigating daily pressure: guided breathing cycles designed to calm the nervous system, plus tools to reduce anxiety, improve focus, and find a moment of peace.
Professional invoices on iPhone and iPad - no account needed.
The fastest way to create professional invoices on iPhone or iPad. Manage clients, items, taxes, and payments in one simple, private workspace - no account, no subscription, and your data stays on your device.
Find your position anywhere - no signal needed.
An essential companion for travel, hiking, and exploring: a powerful, private, completely offline location manager. Save meaningful places - from hidden trailheads to secret spots - and find your way back to them without a signal.
A safe, parent-controlled browser for families.
A controlled web browser designed for families: website whitelists and blacklists, PIN-protected settings, and complete parental control over what can be accessed - a safe online experience the whole family can trust.
Playful brain training for focus, memory & thinking.
A playful brain-training app that helps kids develop focus, memory, and creative thinking through fun, interactive bubble challenges - simple, colourful, rewarding activities perfect for short learning moments throughout the day.
Drawing studio with magical AI-powered effects.
A creative studio combining traditional drawing tools - watercolors, markers, crayons, pattern brushes - with magical animated backgrounds and AI-powered effects that bring drawings to life with moving clouds, bubbles, and sparkles.
Your complete guide to life in Switzerland.
An all-in-one companion for mastering Swiss culture, language, and daily life. Whether you’re in German-speaking Zurich, French-speaking Geneva, or Italian-speaking Ticino, SwissWay adapts to your region and helps you integrate with confidence.
Family events & activities across Switzerland.
Helps parents and families discover local events, activities, and day-trip destinations in Switzerland - curated kid-friendly festivals, workshops, and playgrounds, filterable by category, date, or location, with favourites for easy planning. (Swiss App Store only.)
Personal finance built for life in Switzerland.
Track expenses, receipts, budgets, savings goals, and net worth in one place - with Swiss-first insights for taxes, energy costs, and pension pillars, and savings goals for 3a contributions, holidays, and big milestones. (Swiss App Store only.)
Find real Swiss destinations within 30, 60 or 90 minutes by train.
Plan a day out across Switzerland with live public transport connections. Filter 127 destinations across all 26 cantons by a 30, 60 or 90 minute journey, then check departures, platforms, delays and the weather at your destination. Save places, compare trips and build an itinerary. Location is used only when you request it; your favourites and notes stay on your device.
Swiss hiking routes with live trail conditions, offline maps and GPS tracking.
Explore 840 numbered Swiss hiking routes and about 3,900 signposted local walks on the swisstopo national map. Check live closures, elevation profiles and mountain weather, record hikes with GPS, and save maps for offline use. Route difficulty data from OpenStreetMap is identified as community data rather than an official SAC rating.