Cutaway: How Things Work 3D

Discover how things work by looking inside them.

Cutaway: How Things Work 3D is an interactive learning app for exploring machines, everyday objects and human anatomy. Rotate a 3D model, separate its components, reveal hidden layers and learn what each part does.

EXPLORE 28 INTERACTIVE 3D OBJECTS
Look inside a smartphone, refrigerator, mechanical watch, cordless drill and more. Explore aerospace systems such as a turbofan jet engine, turboshaft helicopter, rocket engine and Earth-observation satellite. Discover anatomical models including the heart, brain, eye and lungs.

TAKE THINGS APART IN 3D
• Rotate and zoom to inspect models from different angles.
• Use exploded views to separate components.
• Peel away outer layers and reveal internal structures.
• Explore X-ray and cross-section views.
• Tap a component or choose it from the parts list to read its explanation.

UNDERSTAND THE MECHANISM
Run supported mechanisms to see moving parts in action. Follow step-by-step explanations that connect individual components to the way the whole object works. Save interesting parts so you can return to them.

TEST WHAT YOU LEARN
Try interactive quizzes, identify parts and revisit objects to strengthen your understanding. Your exploration progress and quiz results are saved locally on your device.

LEARN YOUR WAY
Search the object library by name or description, browse categories and choose a light or dark theme. Switch between English and Indonesian for the interface and object explanations.

The bundled 3D library and core learning features work offline after installation. No account is required. Internet access is needed for advertising, purchases and purchase restoration.

Cutaway contains banner and interstitial ads. An optional one-time Remove Ads purchase removes advertising; pricing is shown in Google Play.

Made for curious learners, students, educators and anyone who wants to understand what is inside. Models and explanations are educational illustrations, not repair instructions, professional engineering tools or medical advice.

Pick an object. Look inside. Find out how it works.

Recent changes:
Explore the new espresso machine with 37 interactive parts, a pump animation, an eight-step brewing guide, and ten quiz questions. All new explanations and questions are available in English and Indonesian. The library now contains 29 objects.