Lithium: EPUB Reader

Lithium is an EPUB reader that offers automatic book detection and features such as highlighting and note-taking. It also includes night and sepia themes, the option to switch between pages and scrolling, and is built with Material Design. The app is 100% ad-free, but users can upgrade to the Pro version called Lithium Pro for additional features like syncing reading position, highlights, notes, and bookmarks across devices using Google Drive. It also offers custom reading themes and more highlight colors. Users can provide feedback through the app and may occasionally receive offers to upgrade to the premium version.

The advantages of Lithium: EPUB Reader App are:

- Automatic book detection: The app has the ability to detect books automatically, making it convenient for users to access and read their ebooks.

- Highlighting and notes: Users can highlight important passages and make notes while reading, allowing for a more interactive and personalized reading experience.

- Night and sepia themes: The app offers customizable themes, including night and sepia themes, which are easy on the eyes and suitable for different reading environments.

- Switch between pages and scrolling: Users have the option to switch between traditional page flipping and scrolling, giving them flexibility in their reading preferences.

- Built with Material Design: The app is built using Google's Material Design principles, providing a clean and intuitive user interface.

- 100% ad-free: Unlike many other apps, Lithium does not display any third-party advertisements, ensuring an uninterrupted reading experience.

In addition, upgrading to Lithium Pro unlocks additional features such as syncing reading position, highlights, notes, bookmarks, and more across devices with Google Drive. The Pro version also offers custom reading themes and more highlight colors. Users can provide feedback to the developers by using the "Send feedback" button in the app.