Projects

Events & ticketing — RSVPs, tickets, on-site check-in and a shared photo wall. Web platform plus native iOS and Android apps.

iOS and Android apps for tourists in Italy — audio guides, videos, descriptions, cross-navigation, QR-code scanning and deep-linking.

Creator subscription platform — upload photos and videos, paywalled private content, video calls and a blog, with anti-leak protection.

Automatically calculates and records pools, mountains and whists for each player, based on the game ordered and the tricks taken.

Migrated a ~9,000-page site from Next.js to Astro — all pages generated at build time (~30s full build), no SSR, no runtime generation. Just plain, fast HTML.

URL shortener — shorten, manage and share links, with bio pages, analytics and reports. Also powers my links page.

Compare insurance policies and offers in Switzerland, with AI behind the scenes — users find the best offer, insurers find potential customers.

A one-page app to create a LinkedIn-style avatar with a badge — everything is customizable.

A simple way to collect photos and videos with friends — like Instagram but not, closer to Pinterest. Perfect for parties, trips, weddings and concerts.

IoT app — users install level sensors on outdoor WCs, control them from the app and get notified when full. (In testing.)

AI tool to analyze a CV and make recommendations, connecting CV data with Swiss statistics by age, canton, education and gender. (Killed by the client.)

Slovak business registry — search and browse company records.

AI-powered analysis of how to use your roof for solar energy — landing site and calculator.

Apps for a cleaning service — task management, absences, time tracking and built-in chat.

Marketing site and blog for Propera, Switzerland's pre- and off-market property platform.

Switzerland's leading place for pre- and off-market property listings — customer portal for buyers, sellers, agents and developers.

Native Android app to explore hundreds of castles with descriptions, facts and photos.

Native iOS app to explore hundreds of castles with descriptions, facts and photos.

Explore hundreds of castles worldwide, each with detailed descriptions, facts and photos. (The pre-Astro build.)

Backend APIs for the castles project — manage castles and photos, register users, store user data and activity.

Validates and redeems beverage containers by scanning product EAN codes.

Validates and redeems beverage containers by scanning product EAN codes.

Platform for the non-profit administering Romania's deposit-return system.

New driver app using HERE SDK maps to build routes between waypoints and navigate garbage collection — rebuilt with Android Compose.

Tennis clubs and players app — migrated Obj-C → Swift, added deep linking, sockets, push notifications and Apple Pay; made it crash-free.

Online tool to enter tennis results, calculate points and detect winners.

Collection of reusable SwiftUI components and helpers I use across iOS projects.

Lightweight networking and API layer for Swift apps.

Platform for the non-profit administering Slovakia's deposit-return system.

HERE-maps driver app for garbage collection — alternative routes, skip waypoints and navigation options.

Take back bottles and cans by scanning barcodes — prints vouchers and reports collected data to the CRM. Part of Slovakia's deposit-return system.

IoT app for field workers — validate, reprogram, install, replace and configure bin sensors, collect pictures and create sensor profiles.

Private social network, rewritten from scratch in 3 months — much more stable and faster.

Private social network, rewritten from scratch in 3 months for a much better experience.

Web version of the private social network — same content and actions in the browser.

Localization service to simplify and automate translating apps and websites. Sole developer across everything — backend, frontend, API, and SDKs for iOS/Android/React.

Library for reading, writing and converting DBF database files — the engine behind WhiteTown's DBF tools used by thousands. My most-starred open-source project.

Mass-configuration app for Sensoneo smart sensors — auto-connects over Bluetooth and applies preset profiles.

Track transport units and containers between construction sites and warehouses, with barcode scanners and external equipment.

Personal finance tracker for expenses, incomes and live balances.

Scan QR codes from Slovak receipts, fetch details from the official database, store them on-device and export reports to CSV.

From idea to App Store and Google Play — synchronous photos and collages, with a Node.js backend and website.

Flexible, customizable value picker control for iOS.

OpenCart shopping app — sole developer from idea to the App Stores, including design, apps and website.

iOS apps for events and conferences — rewrote a legacy codebase to modern iOS and shipped a month early.

Internet banking app for Nedbank, South Africa — accounts, payments, loans, transfers, fraud alerts, biometric login and analytics.

An iOS framework that integrates into any app and extends it with plugins written in React Native.

New modern interface with maps, service-appointment scheduling, widgets, dealer search and animations.

Implemented the user interface for Addiko Bank, Croatia.

View, edit and convert DBF files on macOS — from idea to the App Store, including design, app and website.

Green-field internet banking app for OTP Bank, Slovakia — accounts, cards, transactions, domestic and foreign payments and limits, all the way to the App Store.

New features and design for Raiffeisen Bank, Czech Republic.

Full redesign and new features for ZUNO Bank, Slovakia — accounts, cards, transactions and payments, with polished animations.

iOS app for real estate — chat, maps and communication between buyers and sellers.

A set of macOS apps to convert database files between formats — thousands of users.

A set of Windows apps to convert database files between formats — thousands of users.

View, edit and convert DBF files on iOS — a one-of-a-kind app.

View, edit and convert DBF files on Windows — from idea to sales, including the app and website. Thousands of users.