ReadTheory provides online reading activities for all ages and ability levels that is completely free. The app adapts to students’ individual ability levels and presents students with comprehension activities based on their needs. Passages from the elementary to the college level are available to students. There is no assigning of content or levels for students, everything is done automatically by the program. You couldn’t even adjust the settings for what students are assigned if you wanted to. Obviously, this has drawbacks if you would like to have more control over what students are doing. But, if you are looking for simplicity, this is the place for you. Once the accounts are set up, all you need to do is routinely go in and monitor students’ progress.