App: Khan Academy

This app is not just for Physics but has great Physics resources! This free app allows you to quickly navigate to find what you need. You can learn Physics subjects using videos, articles, and tutorials. You'll notice that the link to the website (Khan Academy) is also provided on the resource page as a YouTube channel. Both of these resources combined can give you more than enough resources for Physics to help you prepare for any quiz or test. This app is available on both Android and iOS.