Experimental Playground

Apps, experiments,
and ideas. Built by
hand at CS42.

Native iOS apps, live AI experiments in the browser, and a playground of quizzes, games, and calm corners. Real products ship from here.

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Featured

Experiments pushing what the browser can do

Two live projects you can open and try right now — no installs, no sign-ups.

Computer Vision modes: general detection, calorie counting, cafe occupancy, and padel tracking
Object Detection YOLO Real Time

Computer Vision

Real-time object detection powered by YOLO. Detect objects, estimate calories, monitor table occupancy, and analyse padel matches right in your browser.

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Draw AI interface. Sketch anything and let AI guess the category in real time
Drawing AI Creative

Draw AI

Test your drawing skills against an ML model trained on 95 object categories. Sketch anything and see if the AI can recognise what you drew in real time.

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Our Applications

Mobile apps built with care for your pocket

Native iOS apps designed around one simple job each — done properly.

Sukoon iOS App Icon iOS
Soundscapes Coming Soon

Sukoon سُكُونْ

The full Sukoon experience in your pocket. Mix nature sounds, save your soundscapes, and use background playback for focus, rest, and sleep.

View app details
PunchTrack iOS App Icon iOS
Boxing Out Now

PunchTrack

Audio-powered punch counter for solo heavy-bag boxing. No wearables and no recording. Train fully offline, or add a free account for friends and leaderboards.

View app details

All mobile apps

Sukoon, PunchTrack, GeoQuiz, Sider, and PhotoSweep — with more on the way.

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Fun Experiments

Smaller side projects to fill a break

Quizzes, games, and calm corners — quick to open, easy to put down.

The Chilling hub with Sukoon soundscapes and Tanaffus guided breathing
Sukoon · سكون Breathing

Chilling

Mix ambient soundscapes with Sukoon (سكون — stillness) and practice guided breathing exercises to focus, relax, and unwind.

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The Quizzes hub with six geography and culture quizzes, plus multiplayer mode
Geography Multiplayer Leaderboard

Quizzes

Test your geography knowledge with timed challenges, compete on leaderboards, and play with friends in multiplayer mode.

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The Games hub with Snake, XO Challenge, Team Generator, and Tanks Defense
Snake XO Tanks Teams

Games

Classic Snake variants, XO strategy challenges, tank defense, and team generators for quick fun whenever you need a break.

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Virtuoso Piano with a full on-screen keyboard, tutorials, and MIDI track library
MIDI Music

Piano

Fake your piano skills. Load a MIDI file and the piano plays the correct note no matter which key you hit — look like a pro instantly.

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Work With Us

Websites and iOS apps, built the way we build our own

The team behind this playground also takes on client work — from landing pages to full native apps.

Design Development

Website Design

Fast, polished websites designed and built end-to-end — from a single landing page to a full product site.

  • Landing pages, portfolios & product sites
  • Responsive, mobile-first layouts
  • Bilingual English / Arabic (RTL) builds
Learn more
Swift Native iOS

iOS App Development

Native iPhone apps designed around one job done properly — the same craft behind Sukoon, PunchTrack, and GeoQuiz.

  • Idea to App Store, end-to-end
  • Native SwiftUI — fast, offline-friendly
  • Privacy-first: on-device by default
Learn more

Have a project in mind?

Tell us what you're building — the first consultation is free, no strings attached.

Book a free consultation