Grockit (strong for math and science)
Best ACT Prep
Resources (free to sign up):
http://www.learningexpresshub.com/productengine/LELIndex.html#/learningexpresslibrary/libraryhome For this one, create an account (make sure it says Knox County R-1 at the top when you register). You will log in, and in the middle of the screen there will be little windows to scroll across, scroll across to the right and choose College Prep Center. From there click on the button that says Prepare for your ACT Test.
https://www.march2success.com/ For this one, create an account and log in, then click on My Account and choose the College Prep tab, there you can choose practice tests for the ACT.