Lithium Pro is a premium upgrade for the free Lithium app, designed to enhance your reading experience. This app unlocks advanced features that allow users to sync their data across multiple devices via Google Drive, ensuring seamless access to their library. With customizable themes, readers can personalize their interface by adjusting background and text colors. The app also offers additional highlight colors, giving users more ways to annotate their books. Ideal for avid readers who value both functionality and personalization, Lithium Pro transforms the standard reading experience into a tailored, cross-device journey.

While the core book content is not synced, the ability to maintain consistent settings and preferences across devices makes this app particularly valuable for users with multiple gadgets. The Pro features ensure that your reading environment remains just as you like it, regardless of which device you're using.

Lithium Pro offers several distinctive features that set it apart in the realm of e-reading applications. One of its standout capabilities is the Sync feature, which uses Google Drive to keep user data synchronized across various devices. This ensures that your reading progress, bookmarks, and other important data are always up-to-date, no matter which device you pick up next.

Another significant feature is the ability to create custom themes. Users can modify page background color, text color, and link colors according to their preferences. This level of customization allows for a personalized reading experience that can reduce eye strain and make reading more enjoyable. Additionally, the app provides more highlight colors than the standard version, enabling users to categorize and emphasize different parts of their texts more effectively.

These features collectively offer an enhanced reading experience, focusing on user comfort and convenience. By allowing extensive personalization and maintaining continuity across devices, Lithium Pro meets the needs of modern readers who demand flexibility and control over their digital libraries.

When it comes to e-books, having a vast and diverse library is essential for an enriching reading experience. Lithium Pro offers users access to a comprehensive collection of e-books, ensuring that there's something for everyone. The app not only boasts an extensive library but also emphasizes the importance of copyright authenticity.

Each e-book available through Lithium Pro is verified to ensure compliance with copyright laws, giving readers peace of mind. This commitment to legal integrity means users can enjoy their reading without concerns about copyright infringement. By prioritizing legally obtained content, Lithium Pro fosters trust between the platform and its users.

The app's dedication to maintaining a robust and authentic e-book selection translates into real value for book lovers. Readers can immerse themselves in both classic literature and contemporary works, knowing they are supporting authors and publishers by accessing legitimate copies. With Lithium Pro, you're guaranteed a guilt-free journey through the world of digital books.

One of the key features that sets Lithium Pro apart is its exceptional format compatibility. Understanding that e-books come in various formats, the app ensures seamless integration with multiple file types such as EPUB, PDF, and more. This flexibility allows users to import and read books from different sources without worrying about format restrictions.

Lithium Pro's advanced conversion capabilities further enhance this experience by enabling users to convert files into their preferred reading format effortlessly. Whether you're switching devices or simply have a favorite e-book format, the app maintains the original quality while adapting to your needs.

This focus on format compatibility significantly benefits avid readers who source their digital books from various platforms. By removing barriers related to file formats, Lithium Pro creates a unified reading environment where content accessibility takes precedence. Users can now build their personal libraries without being limited by technical constraints or proprietary formats.