The top 20 trending Paid Books & Reference Apps for Android right now

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 August 2025 and picked the best ones for you to download onto your Android phone. This Android app list shows the currently trending ones. Last updated on 2025-08-31.

ReadEra Premium – ebook reader

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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100,000+ downloads

Books & Reference

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 …

Moon+ Reader Pro

**************** 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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1,000,000+ downloads

Books & Reference

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! **********…

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…

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1,000,000+ downloads

Books & Reference

Nynix LLC
1,000,000+ downloads
BOOKS_REFERENCE

Used by arborists, fishermen, firefighters, climbers, military and boy and girl scouts the world over, Knots 3D will q…

Knot IQ - The Bear Essentials

The Bear Essentials Outdoors Co. LTD.

**This is the EARLY SUPPORTERS LAUNCH!** You get a LIFETIME ACCESS Pass (which helps support the next updates) Please note, we are in the early testing stages of this app! We'll have 185+ Knots as of…

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1,000+ downloads

Books & Reference

The Bear Essentials Outdoors Co. LTD.
1,000+ downloads
BOOKS_REFERENCE

Knot IQ - The Bear Essentials

**This is the EARLY SUPPORTERS LAUNCH!** You get a LIFETIME ACCESS Pass (which helps support the next updates) Please n…

e-Sword: Bible Study to Go

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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100,000+ downloads

Books & Reference

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…

WolframAlpha Classic

Wolfram Group LLC

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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1,000,000+ downloads

Books & Reference

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…

FBReader Premium

FBReader.ORG Limited

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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100,000+ downloads

Books & Reference

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…

Universalis Publishing

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, …

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50,000+ downloads

Books & Reference

Universalis Publishing
50,000+ downloads
BOOKS_REFERENCE

TO TRY BEFORE YOU BUY: get the "Catholic Calendar: Universalis" app for a free 30-day preview. Feasts and ce…

Lunescope Pro: Moon Phases+

🌕🌖🌗🌘🌑🌒🌓🌔🌕 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…

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100,000+ downloads

Books & Reference

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…

Collins Bird Guide

NatureGuides Ltd

‘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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50,000+ downloads

Books & Reference

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…

CCW – Concealed Carry 50 State

Workman Consulting LLC

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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100,000+ downloads

Books & Reference

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…

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 bac…

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10,000+ downloads

Books & Reference

FaultException
10,000+ downloads
BOOKS_REFERENCE

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

Calibre Companion

"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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100,000+ downloads

Books & Reference

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…

Lifetime support, no extra charge, no subscription fee. Calibre Sync can: - help you access full Calibre libraries on most popular personal cloud services, including Google Drive, Dropbox, Microsoft…

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10,000+ downloads

Books & Reference

BIL studio
10,000+ downloads
BOOKS_REFERENCE

Lifetime support, no extra charge, no subscription fee. Calibre Sync can: - help you access full Calibre libraries on …

Missale Romanum

Rafael Cereceda

Application with full Roman Missal in Latin and Spanish. We are also including English, Italian, and German texts. So, you'll end having here the following Missals: Latin Spanish Latin-Spanish Latin-…

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10,000+ downloads

Books & Reference

Rafael Cereceda
10,000+ downloads
BOOKS_REFERENCE

Missale Romanum

Application with full Roman Missal in Latin and Spanish. We are also including English, Italian, and German texts. So, …

Saint Josemaría Escrivá

Electronic Business Solutions

This application will help you live your Christian faith in your ordinary occupations and follow a personalized spiritual program with the hand of Saint Josemaría. Available in English, Spani…

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10,000+ downloads

Books & Reference

Electronic Business Solutions
10,000+ downloads
BOOKS_REFERENCE

Saint Josemaría Escrivá

This application will help you live your Christian faith in your ordinary occupations and follow a personalized spiritu…

Twenty-Four Hours a Day

This most-downloaded app from Hazelden Publishing offers daily thoughts, meditations, and prayers for those in recovery from alcohol and other drugs. Since 1954, the words of Twenty-Four Hours a Day…

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10,000+ downloads

Books & Reference

BookMobile
10,000+ downloads
BOOKS_REFERENCE

Twenty-Four Hours a Day

This most-downloaded app from Hazelden Publishing offers daily thoughts, meditations, and prayers for those in recovery…

Electricians' Handbook PRO

Calculation World

The application contains all those articles and topics which briefly explains the basics of electricity and electrical engineering. The application is suitable for professional electricians, amateur,…

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5,000+ downloads

Books & Reference

Calculation World
5,000+ downloads
BOOKS_REFERENCE

Electricians' Handbook PRO

The application contains all those articles and topics which briefly explains the basics of electricity and electrical …

ArtScroll Smart Siddur סדור

ArtScroll / Mesorah Publications

For a generation, the original ArtScroll Siddur has been the unchallenged Siddur of choice across the English-speaking world. The new, expanded ArtScroll Siddur inaugurated a new era of excellence, …

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10,000+ downloads

Books & Reference

ArtScroll / Mesorah Publications
10,000+ downloads
BOOKS_REFERENCE

ArtScroll Smart Siddur סדור

For a generation, the original ArtScroll Siddur has been the unchallenged Siddur of choice across the English-speaking …

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