Chrome OS Apps - Chrome OS Apps are web-based applications (programs) that are designed to be used entirely within the browser. These apps allow you to create documents, edit photos, and listen to music, and much more without the need to download and install additional programs. The Chrome Web Store has an extensive collection of free and paid apps that work with your Chromebook. (When Chromebooks are managed by a School or District, students can typically only install pre-approved apps on their Chromebook.)