Looking for the perfect high school apps for Android tablets, smartphones, or maybe even Chromebooks? Take it from us: it's not easy. The Android marketplace is overflowing with options. In this list we've narrowed things down for you, targeting highly useful and flexible apps that are up to the challenge of a high school classroom. These apps are both high quality, and designed to give you the best bang for your buck, so they're well-suited to pre-loading on devices in a 1-to-1 classroom. You'll notice the tool on this list are also, with a few exceptions, not content-focused. Instead, they're what upper-grade students need to demonstrate knowledge and gain new skills no matter the content area.