The Onyx Boox Lynx is part of a new breed of open Android e-readers that allow you to install your own apps and not lock you into any one specific ecosystem. The Onyx Boox Lynx has a default reading app that will scan your Micro SD card or any books you download from 3rd party apps. The open nature of Android on the Lynx basically allows you to install any app you want from Google Play, or alternative markets such as Good e-Reader.