The PhET iOS app allows native offline use of all the HTML5 sims and can be downloaded from the app Store. The app is $0.99 and proceeds fund more HTML5 sim development.

The app is supported in the following languages:

The PhET iOS app automatically matches the language preference setting of your iPad or iPhone.

iPads do not support Java or Flash. Only the HTML5 sims are compatible with iPads. You can see the compatible sims here.

We offer an iOS app that allows native offline use of all the HTML5 sims. Find it on the App Store here. Our app is $0.99 and proceeds fund more HTML5 sim development.

You can 'Download' an individual sim to use on an iPad (offline) by adding it to the iPad reading list.

The app can freeze if your iPad has insufficient disk space. Please ensure you have at least 150 MB of free disk space on your iPad prior to installation.

If you encounter any issues with the app, please email us at phethelp@colorado.edu. We will assist you with trying to fix the problem, and gathering debugging information to improve our app.