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• 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.
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Google Play Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated.
Pros
Accurate rendering of EPUB files with preserved formatting.
Clean and minimalist interface, free of ads.
Ability to create custom categories and support for a large number of EPUBs.
Features like highlighting, annotations, and syncing between devices are appreciated.
Good handling of images within EPUB documents.
Cons
Glitchy highlighting feature that often selects too much text.
Issues with file access permissions leading to books not opening.
Lack of options to back up EPUB files to cloud services.
Inconsistent performance when handling long chapters or animations.
Missing dictionary functionality.
Most mentioned
Highlighting issues
File access and opening problems
Love for the app's formatting capabilities
Desire for improved management and backup features
User reviews
Edit: Uninstall and reinstall the app. It prompts you to allow storage access again. Old: This app is great almost 100% of the time, however, for some ebooks that have long chapters, the app will sometimes start to slow down whenever its doing an animation (scrolling, page turning, tap to bring up menu, etc.). This also doesn't always happen and isn't consistent, with a given chapter being super slow one day and fine the next.
It's great, just wish there was a way to reorder the categories, and add a book to more than one category at once Edit: recently when transferring books between devices, it won't sync my annotations. Very frustrating as I annotate everything I read Edit 2: for some reason it won't let me open any of my books, saying the file in unavailable. Can't figure out what's going on but may need to find a different app with all the issues coming up recently
Previously great, but like other folks have reported, as of spring 2024, it won't open books due to permissions problems with accessing files on the phone (nor am I prompted to grant permissions again, as other apps do). I've emailed the dev and gotten no response, which has been true for other issues over the years, too. It's a real bummer because I've loved this reader and have lots of notes and bookmarks in it.