Lithium: EPUB Reader

39.6K reviews
Content rating
PEGI 3
5M+
Downloads
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About this app

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.
Read books on your phone or tablet with this EPUB reader.
Updated on
Aug 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Files and docs, App activity, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

36.1K reviews
ren
May 22, 2025
LITERALLY THE BEST EREADING APP EVER. it even gets better when you purchase the pro version (which is affordable and worth it!!) because i get to sync my bookmarks, highlights, everything across multiple devices, and i get to customize the colors of the background, text and links in the books i'm reading. it's such a fun experience for readers who love to organize and personalize their reading materials. i was quite worried when this was gone from the store for a while, but it's back!
121 people found this review helpful
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A Google user
August 8, 2019
I've downloaded so many EPUB readers but this is the best one so far. It is easy to use, much more simplified yet it has everything I need. You can search words in the books, add notes, search them on internet, highlight them, change the sheet color and brightness etc. 10/10 would read again!
53 people found this review helpful
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Sammy_ 001
August 30, 2026
I've had this app since 2018 and have used it to read ever since then The recent update requests the app to have access to all files, and read, modify and delete any files on your phone without notifying you. The app is good for reading but not worth it in the slightest for the cost of everything on my phone. I'm unsure why the creators wanted access to all files, and why a single file can't be selected instead, but I've downloaded an alternative app and will be uninstalling this shortly.
1 person found this review helpful
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FaultException
August 31, 2026
Hi, if you've used it for a while, you likely already gave it a storage permission originally. Android then made it so apps can't use that one anymore, and have to use this new one if you want general access. This one might be more broad though. I may consider allowing a scoped directory on new Android, but I think users like ease of auto detect.

What’s new

0.25
- Updated text selection experience.
- Export data from multiple books at once.
- The "delete from device too" checkbox when deleting books will now be saved.