Lithium: EPUB Reader

39.8K reviews
Content rating
All ages
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Content rating
All ages
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About this app

Lithium is an EPUB reader.

• Automatic book detection
• Highlighting & notes
• Night & sepia themes
• 100% ad-free*

LITHIUM PRO

Upgrade to Pro to unlock the following features, as well as 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
Oct 20, 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

36.3K reviews
Haneul
May 5, 2021
I love this app but the reason I feel forced to replace it is a very simple feature that I can't do without anymore: a way to mark/flag works. When I open the app I have hundreds of files, some of them I finished reading, some I haven't started, some I'm halfway through. However just by title I often can't remember, and the task of opening one by one to read over a couple pages to remember if I've read it or not... If I could just color code or somehow mark the files would make the app perfect.
76 people found this review helpful
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Gabriel Marshall Rebello
December 7, 2024
I use this app for a long time now, but there's three things that will make it better, worth of getting the pro license. 1st: Reordering the categories. Today, they will be persistent on the order you created them. 2nd: Reordering the books in the order YOU want them to be. 3rd: A simple mark for "Read". Keep it simple, but better.
3 people found this review helpful
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Diego Dias
January 13, 2025
The app so far has served me well. I just would like to point out an issue that I have when trying to highlight the text. Around the top and the bottom while highlighting it suddenly jumps several pages instead of going line by line. So I either select all the pages it highlighted or give up the task.
7 people found this review helpful
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What’s new

- Shortcut to open contents drawer always appears as icon instead of hiding in the menu.