Explore the playful side of physics!

Experiment with levers, pulleys, inclined planes, wedges, wheel and axles, and screws. Discover the invisible forces at work. Alter and test machines to destroy a castle, make music, send satellites into orbit, and more!

“I just love how apps like these get kids genuinely excited about science." — COOL MOM TECH

*** App Store Editor's Choice ***
*** Parents’ Choice Gold Award winner ***

Simple Machines is No. 4 in Tinybop’s Explorer’s Library. Each Explorer’s Library app lets kids explore the invisible and awesome wonders of STEM. Kids (and kids at heart!) develop foundational science literacy.

* Explore 6 simple machines: levers, pulleys, inclined planes, wedges, wheel and axles, and screws.
* Experiment with real world physics.
* Alter each machine.
* Learn about force and motion, actions and reactions, inputs and outputs, conservation of energy, mechanical advantages, and tradeoffs.
* Sophisticated sound design rewards experimentation.
* Original artwork by James Gilleard.
* Learn new vocabulary in 40+ languages with interactive labels.
* Intuitive, safe, and kid-friendly design.
* Entertaining for kids and adults alike — play and learn together!
* Get free activity sheets at

FREE handbook
Our expert-reviewed handbook is full of facts, interaction hints, and discussion questions to support learning in this app, in the classroom or at home. Download in your app or at:

Privacy Policy
We take your and your child’s privacy seriously. We do not collect or share personal information about your child. We do not allow any third-party advertising.

When the camera, microphone, and other services are used within an app, your information is not collected or distributed outside of the app.

Read our complete privacy policy at

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What's New

Version 1.0.8

Minor improvements.

Ratings and Reviews

3.7 out of 5

16 Ratings

16 Ratings

Editors’ Choice

Made with Tinybop’s usual charm and polish, Simple Machines distills difficult ideas into fun hands-on lessons. Spin giant screws, crack open icy boulders, and use levers to bombard cartoon castles—all while learning about real-world physics.


Soccer mom jeans

When you start thinking about it, simple machines are everywhere! Thanks for making learning fun



Wonderfully imagined and intuitive way to teach youngsters about physics. Bravo!!


Tinybop Inc.
463.4 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Afrikaans, Albanian, Arabic, Basque, Bengali, Bulgarian, Cambodian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, German, Greek, Haitian, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Irish, Italian, Japanese, Korean, Latin, Latvian, Malay, Norwegian Bokmål, Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swahili, Swedish, Tagalog, Tamil, Telugu, Thai, Tibetan, Traditional Chinese, Turkish, Uighur, Ukrainian, Urdu, Uzbek, Vietnamese, Welsh
Age Rating
Rated 4+
© Tinybop Inc., 2017


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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