Lithium is an EPUB reader. • Automatic book detection • Highlighting & notes • Night & sepia themes • Switch between pages and scrolling • Built with Material Design • 100% ad-free* LITHIUM PRO Upgrade to Pro to unlock the following features, as well as all all future Pro features: • Sync reading position, highlights, notes, bookmarks and more across your devices with Google Drive. (Books themselves are not currently synced.) • Custom reading themes (custom colors) • More highlight colors. NOTE: Lithium Pro works as a license to unlock the Pro features in this app. As long as Pro is installed alongside Lithium you can use the Pro features. It is not a separate standalone app. PLEASE GIVE FEEDBACK Use the "Send feedback" button (in the drawer or menu depending on where you're at in the app). Please let us know about any bugs or crashes you encounter. * Ads meaning third-party advertisements. There may be occasional offers to upgrade to the premium version of the app.