Projects

The Menopur app is a medical device from Ferring Pharmaceuticals for women undergoing fertility treatments with Menopur®. The app provides clear instructions, information, and support for the correct preparation and administration of injections, with a strong focus on safety and ease of use.

• Dosage selection based on packaging/strength
• Video instructions per dosage for correct injection technique
• Product information: leaflet, brochures, and background details
• Safety check via RVG number (legal compliance)
• FAQ: side effects, storage, injection techniques
• Links to relevant medical websites
• Multilingual support (NL, EN, FR, AR, TR)

• Platform: iOS (iPhone & iPad)
• Interface: simple navigation with progress indicators
• Security: access via RVG number
• Media: built-in video player and PDF viewer
• Analytics: Google Analytics integration
• Offline functionality: key information remains available without internet

• Patients: women undergoing fertility treatment with Menopur®
• Healthcare providers: doctors and nurses supporting patients
• Value: reliable and user-friendly medical support, compliant with medical device regulations, enabling patients to safely and independently follow their treatment

This trade fair app was developed for Merial (now part of Boehringer Ingelheim) to engage cattle farmers interactively during an industry fair. The app featured surveys, knowledge questions, and information on animal health, with instant feedback and playful rewards for participants.

Main Features:

• Interactive surveys on claw issues and animal health

• Instant feedback on answers (correct/incorrect + explanation)

• Reward mechanism (e.g. a Merial stable bucket after participation)

• Visually engaging interface with photos and brand styling

• User-friendly design for quick deployment in a trade fair setting

Technology & Architecture:

• Platform: iOS (iPad)

• Interface: fullscreen presentation with touch controls

• Content: interactive questionnaires, charts, and feedback screens

• Offline use: suitable for locations with limited internet access

• Branding: fully aligned with Merial’s corporate identity

Target Audience & Value:

• Cattle farmers and veterinarians at trade fairs

• Marketing and sales support for Merial

• Value: a low-threshold and interactive way to share knowledge, collect contact details, and actively engage visitors

A multi-tenant platform for holiday parks with a back office and more than 200 white-label iOS/Android apps. The system supported reservations, orders, communication, and notifications, powered by a scalable back office and CI/CD pipeline.

Main Features:

• Reservations & payments: integrated with park systems and payment providers

• Guest apps: 200+ iOS/Android apps with park-specific branding

• Notifications: push messages and in-app messaging

• Content management: multilingual content, news & events

• Maps & routes: interactive park maps and navigation

• Communication: chat & service requests between guests and the park

• Scheduling: activities and timeslots with capacity management

Technology:

• Back office: ASP.NET (4.0 → 4.8), multi-tenant, multilingual

• Mobile apps: Objective-C/Java → Swift/Android SDK, CI/CD with Fastlane

• Integrations: payment providers, reservation systems, map services

• Data: SQL Server schema (reservations, users, content, logs)

• Security: GDPR-compliant, role-based access, encrypted data

• Observability: logging, error handling, performance monitoring

Architecture:

• API-centric design: REST endpoints for apps and integrations

• Domain layers: services, controllers, data models

• Resilience: retry logic, timeouts, scalable multi-tenant structure

• CI/CD: automated builds & deployments for 200+ apps

Target Audience:

• Holiday parks and chains seeking branded digital guest experiences

• Guests who want to manage reservations, orders, and information on mobile

• Administrators needing scalable, secure, and multilingual tools

Mermaid is an interactive iOS children’s book app with 13 chapters full of animations, sounds, and bilingual narration (EN/NL). Children explore the story by tapping on scenes, bringing objects to life, and experiencing music and sound effects.

• Interactive scenes with animations and sound effects
• Voice narration in English and Dutch
• Camera and shake integration for playful interaction
• Social media sharing options (Facebook, Twitter)
• Rich multimedia: thousands of illustrations and dozens of audio files

• Language & Framework: Objective-C with UIKit (iOS 5.1)
• Audio: AVFoundation for effects and narration
• Data: Local storage for illustrations and audio
• Interaction: Accelerometer and camera APIs
• UI: Hand-drawn illustrations and custom layouts per chapter

• Modular design per chapter
• Manual memory management (no ARC)
• 32-bit architecture, targeting early iOS devices

Children and parents looking to enjoy interactive storytelling together, with a focus on playful discovery and bilingual learning.

De Teylers Museum Instrumentenzaal app is een digitale gids voor bezoekers van het Teylers Museum in Haarlem. De app ontsluit meer dan 700 historische wetenschappelijke instrumenten met rijke multimedia, audiogidsen en tweetalige content (NL/EN). Bezoekers ontdekken de 18e- en 19e-eeuwse collectie via beeld, geluid en contextuele uitleg — zowel in het museum als thuis.

Hoofdfunctionaliteiten:

• Interactieve catalogus met 700+ instrumenten

• Audiogidsen in Nederlands en Engels

• 360° animaties en hoge-resolutie fotografie

• PDF-hoofdstukken over wetenschappelijke thema’s

• Moderne audiospeler met playlists en achtergrondnavigatie

  
  

  Techniek:

• Taal & Framework: Objective-C met UIKit (iOS 12+)

• Audio: AVAudioPlayer met playlist- en synchronisatiebeheer

• Data: Lokale SQLite-database met 2.5GB aan content (audio, afbeeldingen, HTML, PDF)

• Web: Migratie naar WKWebView voor rijke HTML-presentaties

• Architectuur: MVC met singleton- en observerpatronen

  
  

  Architectuur:

• Geoptimaliseerd voor 64-bit iPhones en iPads

• Incrementale modernisatie van legacy Objective-C code

• Migratie van manual memory management naar ARC

• Offline-first ontwerp — geen internetverbinding nodig

  
  

  Doelgroep:

Bezoekers van het Teylers Museum, studenten en liefhebbers van wetenschapsgeschiedenis.

De app biedt een rijke, zelfstandige museumervaring met nadruk op educatie, interactie en culturele toegankelijkheid.

Blindelinks is een luisterapp voor Nederlandse nieuwsartikelen. Open een kop, druk op play, en het artikel wordt voorgelezen — met lyrics-achtige sync, snelheidsaanpassing en VoiceOver-ondersteuning.

AI & spraak: pipeline van artikel-extractie en speech-normalisatie naar lokale TTS/Voicebox op eigen Macs, met caching zodat je niet elke keer opnieuw wacht. Bewust gericht op controle over bronnen, privacy en de stem die je hoort — niet op een black-box cloudstem.

• Bronnen en playlists (o.a. gratis nieuwsbronnen)
• Page-speech / Voicebox-integratie
• Browserplugins om vanaf een artikelpagina sneller te luisteren
• Podcast/RSS-uitvoer voor nieuwsfeeds

https://www.blindelinks.app

Roomcomposer is een interne redactietool voor AI-interieurfotografie in de stijl van een eigen professioneel fotoarchief — op hardware die je zelf beheert.

AI & beeld: Flux-image workers op Mac Mini genereren conceptbeelden met gelaagde stijlen (basislook + richtingen zoals Scandinavisch of industrieel). Training en inferentie blijven dicht bij het archief: data, modellen en export onder eigen controle.

• Redactie-UI: ruimtetype, stijl, materialen, vrije prompt
• Job-queue worker op Apple Silicon
• Stijlconsistentie uit eigen archief i.p.v. generieke stock-AI
• Goedkeuringsflow voor print; snelle export voor digitaal

https://www.livecast.nl/blog-post.php?slug=ai-interieurfotografie-voor-de-redactie

Teylers_AI is een chatassistent voor het Teylers Museum (web + SwiftUI). Bezoekers stellen vragen over de collectie; antwoorden komen uit echte museumdata — knowledge base, instrumenten, kasten en planken — niet uit vrije hallucinatie.

AI-architectuur: function calling / RAG zodat het model zelf zoekacties plant (bijv. instrumenten zoeken). Primair een lokale open-weight LLM (Qwen) op Mac Mini via Tailscale; OpenAI als optionele fallback. Losse TTS-API voor gesproken antwoorden. API-keys blijven server-side.

• Knowledge base + instruments.json (~700+ historische instrumenten)
• Chat-UI met gesprekgeschiedenis en typing indicator
• Lokale LLM over privé-tailnet (geen Funnel/public LLM-URL in de browser)
• Deploypaden: Strato/livecast én Windows IIS + Tailscale

https://www.livecast.nl/Teylers_AI/

A platform for music publishing and community interaction. Users can discover artists, tracks, releases, and posts, manage playlists, and share content within a multilingual, AI-supported environment.

Main Features:

• Search & discover: artists, tracks, releases, and posts (Discogs/Spotify/Apple Music)

• Editorial workflows: draft → publish, multilingual content (EN/NL), AI-assist for description/translation

• Community: follow, ratings, comments, shared playlists

• Playlists: import/export & sync with Spotify/Apple Music, embedded display

• Media & lyrics: audio, cover art, lyrics integration

• Performance & reliability: server-side caching, production logging

• PWA-ready UI: fast, responsive experience with offline basics

Technology:

• Language & Framework: Custom PHP API (no framework lock-in), vanilla JS (~8k LOC)

• Integrations: Discogs, Spotify, Apple Music, AI prompts (EN/NL)

• Data: MySQL schema (posts, media, playlists, translations, sessions, ratings)

• Frontend: modular vanilla JS, progressive enhancement, minimal dependencies

• Security: server-side sessions, CORS control, input validation

• Observability: logging and tracing for API calls

• Assets: custom CSS, icons/embeds on demand

Architecture:

• API-centric design: PHP endpoints for content, media, playlists, integrations

• Domain layers: models/ (data), api/ (endpoints), includes/ (services)

• Data model: normalized, extensible, multilingual

• Integrations: loose coupling via dedicated services and config-driven credentials

• Resilience: error handling, timeouts, retry logic

Target Audience:

• Editors and music enthusiasts for publishing, curating, and discussion

• Playlist creators/collectors with links to Discogs, Spotify, and Apple Music

• Multilingual communities (EN/NL) that want to use AI without losing a human tone

What began as a series of standalone iOS apps for the Dutch automotive and leasing market grew into a full-fledged white-label mobility platform, built with SwiftUI and a fully responsive design. The platform could easily be customized for any leasing company, giving clients their own branded and feature-rich app.

• White-label architecture: easily adaptable branding for different leasing companies
• Lease tools: search, compare, and contract integration
• Location services: dealer locator, gas stations, and service points with real-time GPS & maps
• Vehicle data: comprehensive database of makes, models, and specifications
• Customer interaction: news, notifications, multimedia, and personal dashboards
• Responsive design: seamless experience on iPhone, iPad, and other Apple devices

• Early versions developed in Objective-C with manual memory management
• Migration to modern iOS SDKs and improved APIs
• Final platform fully rebuilt in SwiftUI, with responsive layouts and dynamic components
• API-driven data integration, modular white-label theming, and secure communication layers

• Leasing companies could launch their own branded app with minimal effort
• Customers gained a modern, mobile-first way to discover cars, manage leases, and access services
• Costs and development time were greatly reduced by reusing the white-label platform
• Positioned the platform as a flexible solution in a rapidly changing automotive market

This project demonstrates the full evolution of mobile software: from the early challenges of Objective-C and memory management to a modern SwiftUI ecosystem with scalable white-label capabilities. It shows how a single app can grow into a platform, delivering long-term value through flexibility and technical evolution.

This is an example of 20 other apps. This example is an interactive education tool for heart failure, developed for doctors and nurses to explain information to patients in a visual and understandable way.

Main Features:

• Interactive heart and circulatory system illustrations

• Whiteboard for drawing/annotating

• Multilingual support (NL/FR)

• Screen recording of consultations

• Share documentation via secure mail or print

Technology:

• Frontend: HTML5, CSS3, JavaScript

• Desktop: Electron (Node.js)

• Whiteboard: HTML5 Canvas

• Backend: PHP (incl. PHPMailer)

• Extra: RecordRTC (video), jsPDF (PDF), Bootstrap (UI)

Architecture:

Hybrid web and desktop app, modular, client-side rendering, responsive design.

Target Audience:

Healthcare professionals for patient education, follow-up documentation, and training.

A web-based Dataflow Diagram Editor to quickly model, document, and share data flows. Users design processes, systems, and connections visually, with validation and export options for documentation and reviews.

Main Features:

• Interactive editor: nodes, edges, grouping, labels, and colors

• Templates for common patterns

• Validation of connections and labels

• Lightweight version control (save, load, duplicate)

• Import/Export: PNG, SVG, PDF, JSON

• Presentation & embed for wikis/reports

• Accessible, responsive UI with shortcuts and zoom/pan

• PWA-ready with offline basics

Technology:

• Framework: React (Create React App), modern JS

• Visualization: canvas/SVG rendering

• State & storage: client-side, localStorage

• Styling: custom CSS with system fonts

• Build: optimized bundling and caching

Architecture:

• Client-only: fully in the browser, can be hosted statically

• Component-oriented: editor, toolbox, canvas, property panels

• Clear separation between rendering and logic

• Extensible export/import and validation rules

Target Audience:

• Data and software teams for design & communication

• Architects and analysts for documentation/reviews

• Education and documentation with clear visualizations

EchtFit is an advanced fitness and health app that combines AI technology with personal coaching. At the core is VERE, a 24/7 AI coach that supports users with training, nutrition, and health, in collaboration with real personal trainers and nutritionists.

Main Features:

• Train: Personalized programs, AR instructions, motion capture via Apple Watch, automatic rep detection, and multiple training types.

• Ask: Chat with trainers/nutritionists, 24/7 AI coach, media sharing.

• Body/Health: HealthKit integration, detailed metrics (weight, HRV, wellness scores), and dashboards.

• Know: Personalized, contextual health and nutrition content.

• Eat: Simple food tracking, meal planning, and practical nutrition advice.

• Onboarding & personalization: Interactive intake with VERE, goal setting, HealthKit integration, and notifications.

• Apple Watch: Motion tracking, workout synchronization, real-time data.

Technology & Architecture:

• Platforms: iOS, iPadOS, watchOS.

• Core tech: GraphQL API, ARKit (3D instructions), custom Motion Capture SDK, HealthKit, Firebase.

• Architecture: MVVM, modular app structure, real-time sync via WebSockets, offline support.

• Security: Token authentication, encryption, privacy-first design.

Target Audience & Value:

• Fitness enthusiasts, personal trainer clients, tech-savvy athletes, and Apple ecosystem users.

• Value proposition: personalized and scalable coaching, data-driven training, flexible workouts, and a holistic approach to health and wellness.

Business Model:

Subscription-based with trial period; premium features such as AR coaching, motion capture, and advanced analytics.

Een iOS-app voor motion tracking, analyse en rapportage. De app koppelt met BLE-sensoren (Movella/Xsens DOT, Hocoma Valedo), vangt bewegingen live, verwerkt deze via een configureerbare dataflow-engine en genereert inzichten en rapportages op basis van een kinematisch model.

Hoofdfunctionaliteiten:

• Sensorconnectiviteit (BLE): detecteren, koppelen, beheren, starten/stoppen metingen

• Live kinematicaweergave: segmenten, posities, 3D-visualisatie via SceneKit

• Dataflow Diagram Designer: visueel ontwerpen van verwerkingspipelines

• Realtime uitvoering: filters, quaternions, trigonometrie, sequenties

• Rapportage & export: resultaten in JSON en view-gebaseerde rapporten

• Bestandsbeheer: downloaden, opslaan, laden van diagrammen en instellingen

• Licentiebeheer: activering en controle binnen de app

Techniek:

• Platform & taal: iOS, Swift, UIKit met Storyboards

• Visualisatie: SceneKit-assets en custom diagram-views

• BLE-laag: modulaire sensorkoppelingen per vendor (Movella/Xsens DOT, Valedo, generiek)

• Dataflow-engine: nodes & functies (arrays, quaternions, trigonometrie, vectoren, logica, sequenties)

• Opslag & I/O: JSON-configuraties, DownloadManager, FileHandler

• Structuur: duidelijke interfaces voor algoritmen, sensoren, rapportage en processing

Architectuur:

• Sensorlaag: abstractie per device via centrale BLE-controller

• Verwerkingslaag: dataflow-diagrammen met scheiding UI en uitvoerlogica

• Kinematisch model: segmentdefinities en oriëntatieverwerking

• Functionele componenten: Designer, Executor, SensorProcessor, OrientationProcessor, Reporting

• Berichtensysteem: losse koppeling via messaging interface

• Uitbreidbaarheid: modulair voor nieuwe sensoren, nodes en exportformaten

Doelgroep:

• Revalidatie- en klinische teams voor objectieve bewegingsanalyse

• Sport- en performance-specialisten voor metingen en feedback

• R&D- en wearable-teams voor sensor-pipelines en prototyping

• Onderwijs en onderzoek voor demonstraties van kinematica en signaalverwerking

Calibrate is an iPad app for calibrating Xsens DOT motion sensors. Users connect multiple sensors via Bluetooth and follow a structured calibration routine with visual guidance and real-time feedback for consistent measurements.

Main Features:

• Bluetooth pairing: automatic detection and connection with Xsens DOT

• Structured calibration routine with clear instructions and countdowns

• Multi-sensor support

• Real-time orientation preview during calibration

• Session tracking: overview of paired/calibrated sensors

• Fully on-device, no internet connection required

• Exclusive for Xsens DOT sensors (Movella)

Technology:

• Platform: iOS (iPad)

• Connectivity: Bluetooth Low Energy (BLE)

• Processing: local, no cloud dependency

• Interface: native iOS UI optimized for iPad

• Hardware: specifically designed for Xsens DOT (2nd generation)

Architecture:

• Native iOS app with Bluetooth management module

• Calibration engine for orientation calculations

• Visual interface for guidance during calibration

• Session management for workflows with multiple sensors

Target Audience:

• Researchers and clinicians using Xsens DOT

• Motion analysis professionals

• Physiotherapists and rehabilitation specialists

• Academic institutions for motion research

• Anyone needing reliable sensor calibration

Simple CVST26 is a cognitive test app focused on visual search performance. It supports professionals and patients in monitoring medication effects and cognitive functions with objective measurements, clear feedback, and export options.

Main Features:

• CVST test with time limits, automatic error/time registration, and feedback

• User management for individual measurements

• Results & analytics with statistics and summaries

• Export test data for analysis/reporting

• Instruction screen for onboarding

• In-app purchases and voucher activation via deeplinks

Technology & Architecture:

• Platform: iOS/iPadOS (landscape)

• Core tech: Objective-C + Swift, AFNetworking, Core Data, StoreKit/MKStoreKit, AVAudioPlayer

• Architecture: modular views, local storage + backend sync (thepsychologycompany.nl/api/)

• Security: TLS connection, ATS configuration

• Offline: Core Data with later synchronization

Target Audience & Value:

• Clinics, researchers, practitioners, and patients

• Standardized test with objective metrics, clear feedback, and easy export

• Business model: hybrid via in-app purchases and vouchers

MuseaScout is an iOS app with information on over 1,100 museums in the Netherlands. Users can search by province, city, category, or keyword and receive a description, address and contact details, and visitor information for each museum, including sharing options for exhibitions.

Main Features:

• Search and filter by multiple criteria

• Compact museum profiles with practical info

• Sharing options for current exhibitions

• Multilingual support (NL/EN/DE)

• Dark mode and dynamic theming

Technology:

• Language & Framework: Swift with UIKit

• Networking: Asynchronous via URLSession

• Data: Local JSON persistence with DataManager (instead of Core Data)

• Images: Caching for fast display

• UI: Modular view controllers, reusable UI components

Architecture:

Client-side filtering and sorting, modular and scalable design.

Target Audience:

Museum visitors who want to quickly and clearly find and share information.

The Nationale Museumgids (Artcast) is an iOS app with information on more than 1,250 museums in the Netherlands. Visitors can search and discover museums by province, city, or interest, with integrated audio and video streaming and links to external sources.

Main Features:

• Search and filter by province, city, and interest

• Audio and video streaming

• External links via “WiYouFli” (Wikipedia, YouTube, Flickr)

• Google Maps integration for routes and location info

• Backend connection for museums to manage their own data via CMS

• Version 2.0: performance optimizations, renewed UI/UX, and extended functionality

Technology:

• Platform & language: iOS, Objective-C

• Integrations: Wikipedia, YouTube, Flickr, Google Maps

• Backend: CMS integration for museums

• Versioning: improvements in performance and user experience in v2.0

Architecture:

• App + CMS backend for content management

• Modular setup for external links and media integration

• Separation between content, media, and location information

Target Audience:

• Museum visitors who want to quickly find information and routes

• Museums that want to keep their information up to date via their own CMS

BuikBuddy is a free app for people with chronic bowel diseases (Crohn’s disease and ulcerative colitis). Users can keep a medical diary, set medication reminders, and share data with their doctor or dietitian. The app also offers a food diary, translation module, and practical tools for daily use.

Main Features:

• Medical diary: track disease progression and symptoms

• Medication reminders

• Food diary (manual input)

• Data export via email to doctor/dietitian

• Translation module: common complaints in multiple languages

• Toilet finder: locate nearest toilet + ratings (1–5 stars)

• Cookbook: 10 Crohn/colitis-friendly recipes + weekly new recipes via subscription

• Available for iOS and Android

Technology:

• Platforms: iOS and Android

• Data export: email function for doctors/dietitians

• Location service: toilet finder with GPS and ratings

• Content: recipes developed by dietitians, tailored to dietary restrictions

Architecture:

• Cross-platform mobile app

• Modules: diary, medication, nutrition, translation, toilet finder, recipes

• Expandable through weekly recipe updates

Target Audience:

• Patients with Crohn’s disease and ulcerative colitis

• Doctors and dietitians for monitoring and guidance

• Also suitable for people with other bowel issues thanks to the toilet finder

An interactive picture book for iPad and iPhone Timo gets a picture book from Uncle Klaas for his birthday. It’s a very special book, because when you open it, you’re right inside it. But you mustn’t shake the book, because then everything gets mixed up. A hilarious picture book that you secretly do have to shake! Make the plates fall out of the cupboard yourself and watch how mother bakes a cake in the washing machine.

The book begins with animated films you can flip through yourself. Once Timo disappears INTO the book, the reader enters interactive pages where they can influence events by shaking, blowing, and clicking. When the book closes and Timo is back in the room, the reader also jumps out of the book and continues flipping through the beautiful animations. *****

You can download this app in the App Store.

The Dikkie Dik app is a series of interactive applications featuring the well-known orange cat. Children play search-and-recognition games, learn to recognize shapes and colors, and are rewarded with treats for Dikkie Dik. The apps combine fun with educational goals such as vocabulary development, observation skills, and learning to use digital resources.

Main Features:

• Search-and-recognition games with animals, sounds, and images

• Games with shapes and colors

• Increasing difficulty levels for continuous learning

• Rewards: collect treats for Dikkie Dik

• Educational focus: listening, visual skills, structured learning

Technology:

• Platforms: iOS (iPad) and potentially other mobile platforms

• Content: interactive game modules with audio, shapes, and images

• Design: specifically created for young children

Architecture:

• Separate mini-games within one app environment

• Educational and playful design with increasing difficulty

• Reward mechanism integrated into gameplay

Target Audience:

• Toddlers and preschoolers, especially children familiar with the Dikkie Dik stories

• Parents and teachers looking for educational apps to support language and observation development

Which One Doesn’t Belong? is a child-friendly iOS app where players must guess which image doesn’t fit in the sequence. By carefully observing, children choose from three options and receive instant feedback through funny sounds. The app encourages observation, logical thinking, and speed.

• Three-choice puzzles: point out which object doesn’t belong
• Instant feedback through sound effects
• Scoring system: earn points for correct answers
• Four levels with increasing difficulty
• Extra game mode: play against the clock for bonus points
• Competitive element: challenge family members

• Platform: iOS
• Interface: simple touch controls (tap/point)
• Game flow: levels, score tracking, and audio feedback
• Design: minimalist and colorful, child-focused

• Toddlers and primary school children practicing logic and observation
• Parents and families who want to play an educational game together
• Value: combines learning and fun, easy to understand and immediately engaging

Kikker’s Birthday is an iOS app based on the beloved children’s books by Max Velthuijs. Together with Kikker and his friends, children prepare for a birthday: making gifts, hanging decorations, and baking a cake. The app captures the same warm and friendly atmosphere as the books, with themes of friendship, togetherness, and learning.

• Birthday preparation with gifts, balloons, streamers, and cake
• Interactive mini-games with Kikker, Piglet, Hare, and Bear
• Child-friendly pacing: calm and clear gameplay
• Simple controls: touch and drag objects (e.g., placing hearts on the cake, wrapping presents)

• Platform: iOS (iPad)
• Interface: simple touch interactions (tap and drag)
• Developer: Pavlov
• App Store availability: €2.99

• Toddlers and preschoolers familiar with the Kikker stories