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Android Apps > Books & Reference > Paid
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Books & Reference
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The 20 most popular Paid Books & Reference Apps for Android ever

Check out the top Books & Reference Apps which are a paid download. We went through all Books & Reference Apps for Android on Google Play in May 2025 and picked the best ones for you to download onto your Android phone. This Android app list is sorted by the all-time number of downloads. Last updated on 2025-05-21.
Knots 3D
Nynix LLC
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Used by arborists, fishermen, firefighters, climbers, military and boy and girl scouts the world over, Knots 3D will quickly teach you how to tie even the most difficult knot! Knots 3D is the ori…
app screenshotapp screenshotapp screenshot
$5.99
4.9
1,000,000+ downloads
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Books & Reference
app icon
4.9
$5.99
Nynix LLC
1,000,000+ downloads
BOOKS_REFERENCE
Knots 3D
Used by arborists, fishermen, firefighters, climbers, military and boy and girl scouts the world over, Knots 3D will q…
Moon+ Reader Pro
Moon+
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**************** 1,000,000+ downloads, The #1 Paid EBook Reader in Google Play, 30-Day Money Back Guarantee! **************** All-in-one ebook documents management and better designed book reader wi…
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$9.99
4.3
1,000,000+ downloads
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Books & Reference
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4.3
$9.99
Moon+
1,000,000+ downloads
BOOKS_REFERENCE
Moon+ Reader Pro
**************** 1,000,000+ downloads, The #1 Paid EBook Reader in Google Play, 30-Day Money Back Guarantee! **********…
WolframAlpha Classic
Wolfram Group LLC
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Use the power of Wolfram's computational intelligence to answer your questions. Building on 35+ years of development led by Stephen Wolfram, Wolfram|Alpha is the world's definitive source for instant…
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$2.99
4.6
1,000,000+ downloads
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Books & Reference
app icon
4.6
$2.99
Wolfram Group LLC
1,000,000+ downloads
BOOKS_REFERENCE
WolframAlpha Classic
Use the power of Wolfram's computational intelligence to answer your questions. Building on 35+ years of development le…
Shan Gui
ZiX Solutions
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It is the end of summer. Han Hui, a university student, meets a mysterious young girl named He Jia in the mountains. After this chance meeting, the two embark on a delightful journey. Shan Gui is a …
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$0.99
4.1
100,000+ downloads
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Books & Reference
app icon
4.1
$0.99
ZiX Solutions
100,000+ downloads
BOOKS_REFERENCE
Shan Gui
It is the end of summer. Han Hui, a university student, meets a mysterious young girl named He Jia in the mountains. Af…
Lunescope Pro: Moon Phases+
Udekowski LLC
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🌕🌖🌗🌘🌑🌒🌓🌔🌕 Spectacular, interactive 3D simulation of the moon, right down to the shadows in the craters and earthshine on the dark side. Touch screen control changes date and time as seen fr…
app screenshotapp screenshotapp screenshot
$3.99
4.1
100,000+ downloads
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Books & Reference
app icon
4.1
$3.99
Udekowski LLC
100,000+ downloads
BOOKS_REFERENCE
Lunescope Pro: Moon Phases+
🌕🌖🌗🌘🌑🌒🌓🌔🌕 Spectacular, interactive 3D simulation of the moon, right down to the shadows in the craters and ea…
ReadEra Premium – ebook reader
READERA LLC
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ReadEra Premium — a unique tool for searching, reading, and managing books and documents. The app allows you to automatically locate all supported books and documents on your device, search fo…
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$14.99
4.8
100,000+ downloads
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Books & Reference
app icon
4.8
$14.99
READERA LLC
100,000+ downloads
BOOKS_REFERENCE
ReadEra Premium – ebook reader
ReadEra Premium — a unique tool for searching, reading, and managing books and documents. The app allows you to …
iQuran – القران الكريم
Beehive Innovation FZE
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******************************************** ** NEWS ** ** iQuran will now be sold for a fraction of its original price, down to $1.99 from $6.99. InshAllah ** the new price effectively makes iQuran…
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$1.99
4.5
100,000+ downloads
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Books & Reference
app icon
4.5
$1.99
Beehive Innovation FZE
100,000+ downloads
BOOKS_REFERENCE
iQuran – القران الكريم
******************************************** ** NEWS ** ** iQuran will now be sold for a fraction of its original pric…
FBReader Premium
FBReader.ORG Limited
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The Premium Edition of the popular ebook reader. Features available in this premium version: * Reading aloud (via Android text-to-speech) * Google Translate and DeepL integration * Built-in support …
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$11.99
3.5
100,000+ downloads
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Books & Reference
app icon
3.5
$11.99
FBReader.ORG Limited
100,000+ downloads
BOOKS_REFERENCE
FBReader Premium
The Premium Edition of the popular ebook reader. Features available in this premium version: * Reading aloud (via Andr…
Dictionary - M-W Premium
Merriam-Webster Inc.
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Get America’s most useful and respected dictionary, optimized for your Android device. Continuously updated with the newest words and meanings, this is the premier Android app for English langu…
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$7.99
3.4
100,000+ downloads
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Books & Reference
app icon
3.4
$7.99
Merriam-Webster Inc.
100,000+ downloads
BOOKS_REFERENCE
Dictionary - M-W Premium
Get America’s most useful and respected dictionary, optimized for your Android device. Continuously updated with …
CCW – Concealed Carry 50 State
Workman Consulting LLC
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This comprehensive app empowers the law-abiding CCW (concealed or open carry permit) holder (or anyone who wants to lawfully transport a firearm in any state.) It gives you direct information needed …
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$1.99
4.8
100,000+ downloads
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Books & Reference
app icon
4.8
$1.99
Workman Consulting LLC
100,000+ downloads
BOOKS_REFERENCE
CCW – Concealed Carry 50 State
This comprehensive app empowers the law-abiding CCW (concealed or open carry permit) holder (or anyone who wants to law…
e-Sword: Bible Study to Go
Rick Meyers
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TL;DR— So many Biblical resources are freely included which other apps charge hundreds of dollars to unlock! BIBLES American Standard Version Berean Study Bible Bible in Basic English Brenton'…
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$2.99
4.7
100,000+ downloads
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Books & Reference
app icon
4.7
$2.99
Rick Meyers
100,000+ downloads
BOOKS_REFERENCE
e-Sword: Bible Study to Go
TL;DR— So many Biblical resources are freely included which other apps charge hundreds of dollars to unlock! BIB…
The Cat in the Hat - Dr. Seuss
Oceanhouse Media, Inc.
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On Sale for a limited time only. Happy Birthday Dr. Seuss! Join the Cat in the Hat in this interactive book app as he stirs up some mischief while Dick and Sally's mother is out and about! Explore p…
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$3.99
4.4
100,000+ downloads
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Books & Reference
app icon
4.4
$3.99
Oceanhouse Media, Inc.
100,000+ downloads
BOOKS_REFERENCE
The Cat in the Hat - Dr. Seuss
On Sale for a limited time only. Happy Birthday Dr. Seuss! Join the Cat in the Hat in this interactive book app as he …
Calibre Companion
Samuel Cohen
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"100 Best Android Apps of 2019" - PCMag (https://www.pcmag.com/article/362295/the-100-best-android-apps) Calibre Companion (CC), recommended by calibre developers, is three applications in…
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$5.99
2.7
100,000+ downloads
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Books & Reference
app icon
2.7
$5.99
Samuel Cohen
100,000+ downloads
BOOKS_REFERENCE
Calibre Companion
"100 Best Android Apps of 2019" - PCMag (https://www.pcmag.com/article/362295/the-100-best-android-apps) Cal…
Librera PRO - Book reader
Librera
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Librera Reader PRO is an easy-to-use and highly configurable reading app that supports most popular document formats, including: PDF, EPUB, EPUB3, MOBI, DjVu, FB2, FB2.zip, DOC, DOCX, TXT, RTF, AZW, …
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$4.49
4.7
50,000+ downloads
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Books & Reference
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4.7
$4.49
Librera
50,000+ downloads
BOOKS_REFERENCE
Librera PRO - Book reader
Librera Reader PRO is an easy-to-use and highly configurable reading app that supports most popular document formats, i…
iLiturgia
Cascubo
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O iLiturgia é um aplicativo que possibilita rezar todas as horas canônicas da Liturgia das Horas pelo smartphone ou tablet, totalmente off-line. Em co-edição com a Edi&cce…
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$3.99
4.8
50,000+ downloads
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Books & Reference
app icon
4.8
$3.99
Cascubo
50,000+ downloads
BOOKS_REFERENCE
iLiturgia
O iLiturgia é um aplicativo que possibilita rezar todas as horas canônicas da Liturgia das Horas pelo smar…
Collins Bird Guide
NatureGuides Ltd
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‘It’s much more convenient than taking a big book with you...the Collins app is fantastic.’ – Chris Packham, Metro ‘The Collins Bird Guide app is destined to become a r…
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$23.99
4.2
50,000+ downloads
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Books & Reference
app icon
4.2
$23.99
NatureGuides Ltd
50,000+ downloads
BOOKS_REFERENCE
Collins Bird Guide
‘It’s much more convenient than taking a big book with you...the Collins app is fantastic.’ – C…
Ta Körkort – Click to show
Ta Körkort
Teoriappar Sverige AB
app icon
Pass the theory test for a category B driver's license on your first try – your personal guide on mobile. 📱 Study smarter and more flexibly Forget boring books and expensive courses. With Ta …
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$36.19
0.0
50,000+ downloads
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Books & Reference
app icon
0.0
$36.19
Teoriappar Sverige AB
50,000+ downloads
BOOKS_REFERENCE
Ta Körkort
Pass the theory test for a category B driver's license on your first try – your personal guide on mobile. 📱 Stu…
Universalis
Universalis Publishing
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TO TRY BEFORE YOU BUY: get the "Catholic Calendar: Universalis" app for a free 30-day preview. Feasts and celebrations according to the General Calendar and the local calendars of the UK, …
app screenshotapp screenshotapp screenshot
$12.99
4.7
50,000+ downloads
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Books & Reference
app icon
4.7
$12.99
Universalis Publishing
50,000+ downloads
BOOKS_REFERENCE
Universalis
TO TRY BEFORE YOU BUY: get the "Catholic Calendar: Universalis" app for a free 30-day preview. Feasts and ce…
Dictionary Pro
TheFreeDictionary.com – Farlex
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Dictionary Pro is the premium version of The Free Dictionary app, featuring offline dictionary and thesaurus content with NO ads. Here's what you get: * 100% ad-free dictionary content. * A huge Eng…
app screenshotapp screenshotapp screenshot
$9.99
4.7
50,000+ downloads
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Books & Reference
app icon
4.7
$9.99
TheFreeDictionary.com – Farlex
50,000+ downloads
BOOKS_REFERENCE
Dictionary Pro
Dictionary Pro is the premium version of The Free Dictionary app, featuring offline dictionary and thesaurus content wi…
dict.cc+ dictionary
Paul Hemetsberger
app icon
Dictionary for 51 language combinations, usable with or without an internet connection (offline dictionary). Vocabularies can be downloaded and updated within the app for free. Before you buy, pleas…
app screenshotapp screenshotapp screenshot
$21.99
4.5
50,000+ downloads
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Books & Reference
app icon
4.5
$21.99
Paul Hemetsberger
50,000+ downloads
BOOKS_REFERENCE
dict.cc+ dictionary
Dictionary for 51 language combinations, usable with or without an internet connection (offline dictionary). Vocabulari…
United States United Kingdom Germany Norway Sweden Australia Netherlands Italy Denmark Hong Kong Brazil France
Canada Spain Portugal South Korea Japan Poland Hungary India Finland Thailand Russia
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