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Popular Paid Books & Reference apps among people in their thirties

NKJV Bible
Tecarta, Inc.
The NKJV Bible for Android The FASTEST Bible app and most efficient way to read & study the Bible. Quickly navigate to any verse and easily access tools to help further your understanding of the Bible. Over 5 million downloads on both iOS
$4.99
94
10,000+ downloads
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BOOKS_REFERENCE
Calibre Companion
MultiPie Ltd
A free demo version is now available. See the end of this description for details. Calibre Companion (CC), recommended by calibre developers, is three applications in one: - a superb device-based calibre library organizer - a high-performa
$3.33
93
10,000+ downloads
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BOOKS_REFERENCE
Ambling BookPlayer Personal
Ambling Books
The premium player for listening to audio books. Download thousands of free audio books from AmblingBooks.com, or purchase best selling mp3 audio book titles, or listen to audio books that you already own. Never lose your place in an audio
$5.99
86
1,000+ downloads
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BOOKS_REFERENCE
Sasol eBirds
mydigitalearth.com
The Sasol e.Birds of Southern Africa is an interactive version of the best-selling Sasol Birds of Southern Africa field guide. This application has specific features that will enhance your birding experience. NB: Please note that an additi
$29.99
82
5,000+ downloads
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BOOKS_REFERENCE
Crystal Guideā„¢ Pocket Edition
M.Stevens
The award-winning premium pocket reference for crystals, gemstones and minerals. Includes detailed facts, geological data and crystal healing, spiritual, numerology, elixir and chakra information for hundreds of crystals and gemstones.
$1.67
95
5,000+ downloads
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BOOKS_REFERENCE
Amplified: The Bible Study App
Harper Collins Christian Publishing
This version of the Olive Tree Bible Study App comes bundled with the Amplified version of the Bible and has been designed for deeper Bible study. Join over 4 million users on “The Bible Study App” and learn from great scholars through thou
$15.99
94
5,000+ downloads
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BOOKS_REFERENCE
Audubon Mushrooms
Green Mountain Digital
The perfect field guide for the season! Nothing beats Audubon mobile field guides! With 1 million downloads, they are the most trusted authoritative field guide collection in North America. Highest quality at an affordable price. We are p
$3.99
71
1,000+ downloads
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BOOKS_REFERENCE
WikiMobile 2 Pro for Wikipedia
Bonfire Media, Inc.
Wikipedia like you've never seen before! "Best Reference App" - Android Network Awards "The Top 10 Coolest Things At CTIA" - mocoNews.net "Favorite Mobile App" - Wave Award WikiMobile 2 is the #1 coolest way to experience Wikipedia.
$3.99
90
1,000+ downloads
|
BOOKS_REFERENCE
Audubon Butterflies
Green Mountain Digital
The perfect field guide for the season! Nothing beats Audubon mobile field guides! With 1 million downloads, they are the most trusted authoritative field guide collection in North America. Highest quality at an affordable price. We are p
$3.99
73
5,000+ downloads
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BOOKS_REFERENCE
Touch Bible (KJV + Strong's)
Patrick Franklin
This KJV Bible *works without internet,* includes the Strong's Hebrew and Greek lexicons, definitions form multiple resources, can be installed on an SD card and more! ** Touch Bible ** Touch Bible will help you get more out of the Bibl
$0.99
92
10,000+ downloads
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BOOKS_REFERENCE
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