Lithium Pro

Name: Lithium Pro
Price: 1.79 GBP
Availability: InStock
Rating: 4.4210524559021 (1342 reviews)
Author: FaultException

FaultException

1,34K reviews

PEGI 3

50K+

Downloads

PEGI 3

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About this app

NOTE: This app acts as a Pro license to the free app. You must have Lithium installed in addition to this app and then the Pro features will activate in the free app.

• Sync: Keep your data backed up and in sync across your devices using your Google Drive account. (Books themselves are not currently backed up or synced.)

• Custom themes: Customize your page background color, text color and link colors. Create, delete and edit themes. You can access the custom themes feature by tapping the three-dots under Theme in display settings after upgrading.

• More highlight colors (see screenshots)

• More features later.

Unlock more features in Lithium and show your support. Expand for details.

Updated on

28 Aug 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
No data collected
Learn more about how developers declare collection

Ratings and reviews

1,12K reviews

A Google user

27 July 2022

Without doubt, this is still the best app for reading epub books. I've used it for many yrs and have always been happy with it. Hw a few extra features would be welcomed, such being able to increase and decrease font size more than is currently permitted; also it wud be handy if font size moved in 5% increments, rather than just 10% increments, as it currently does. Likewise with the margin sizes. Such tweaks, at least for me, wud make the app that little bit bettr. Thx.

100 people found this review helpful

Rachel S

10 October 2026

I used the "ordinary" Lithium reader and was very satisfied from its many options, ease of use and appearance. I have purchased the Pro version only as a tribute to the developer for giving us, free of charge and Ads, such a good App. Also the developer is quick to answer any question from the users.

3 people found this review helpful

Rich K

01 October 2026

purchased the pro hoping maybe itd let me read txt files. looks like only the epub files i have are readable, not the txt files. still, pretty straight forward simple epub reader. not expensive so i dont mind supporting small developers. wish they read txt files though.