Everything on CS42.
A complete map of the playground. Every app, experiment, quiz, game and calm tool in one place.
Native apps for iPhone
Six apps, written in SwiftUI
Sukoon
Soundscapes in your pocket, with background playback and offline sounds.
PunchTrack
Audio-powered punch counter for solo heavy-bag boxing.
GeoQuiz
Geography trivia across 195 countries. Seven modes, and it all works offline.
Sider
A reaction-camera “this or that” game that catches your real reaction.
PhotoSweep
Find the photos eating your storage and swipe months clean.
PixelThat
Turn a photo into a crisp pixel-art avatar, entirely on the device.
Flags, capitals and the Arab world
Six quizzes, solo or multiplayer
Geography
Flags, capitals and populations. Five questions per round.
Geography Expert
The longer challenge, at fifteen questions a round.
Geography Knowledge
Ten multiple-choice questions on capitals, landmarks and shape.
اختبار الجغرافيا
اختبر معرفتك بالعالم مع أسئلة عشوائية باللغة العربية.
اختبار العالم العربي
عشرة أسئلة عن جغرافيا العالم العربي وتاريخه وثقافته.
Custom Quizzes
Build a quiz of your own and share it with friends.
Arcade classics and a team picker
Five games, nothing to install
A piano that just opens
Six voices, MIDI playback, practice mode
Live AI you can try now
Two models, no installs
Ambient sound and guided breathing
Two little apps to help you unwind
Partnership opportunities
What our team brings, and where to reach us.
Who is behind all this
And how your details are handled