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Popular Paid Books & Reference apps among people in their thirties

Dr. Seuss's Sleep Book
Oceanhouse Media, Inc.
Say goodnight with Dr. Seuss in this interactive book app as one yawn spreads from bedroom to bedroom until ninety-nine zillion, nine trillion and three Seussian creatures are sound asleep! Explore pictures, learn new vocabulary, and follow
$4.99
90
10,000+ downloads
|
BOOKS_REFERENCE
Aldiko Sync Pro Unlocker
The Droidware Foundry
Important: PLEASE READ THIS ENTIRE DESCRIPTION BEFORE PURCHASING! UNLOCK KEY (License) for the Aldiko Sync application to enable extra features. This app unlocks the "Pro" features of the Aldiko Sync application. You must have the latest
$0.99
86
5,000+ downloads
|
BOOKS_REFERENCE
Merriam-Webster's Collegiate
Paragon Software GmbH
Merriam-Webster's Collegiate® Dictionary, Eleventh Edition is the perfect portable resource for teachers, students, writers, and word lovers everywhere. ------------ Dictionary Details: • Fully revised print edition featuring more than 16
$20.79
89
1,000+ downloads
|
BOOKS_REFERENCE
US Marine Corps Close Combat
milodroid
Put the entire U.S. Marine Corps Close Combat Training Manual on your phone. Can move to the sd card for android 2.2 and up. Based on the U.S.Marine Corps Close Combat Training Manual MCRP 3-02B Table Of Contents Overview of Close Combat
$1.99
90
10,000+ downloads
|
BOOKS_REFERENCE
SPB Chinese Cards
SPB Software
Traditional flash cards for learning Chinese language enhanced with smartphone technologies like photos, native speakers' dubbing, learning progress visualization, smart adaptive algorithm, and detailed statistics. The program helps you to
$4.95
70
100+ downloads
|
BOOKS_REFERENCE
English-French dictionary
Editions Larousse
New French / English dictionary application for android mobile now available from Larousse, leading dictionary and reference book publisher. - 250,000 words and phrases - 400,000 translations illustrating all nuances of meaning - Recorded p
$5.75
78
10,000+ downloads
|
BOOKS_REFERENCE
World History
solvapps
Chronological presentation of historical topics and events from the Wikipedia. Travel through the fascinating history of mankind from the earliest civilizations to the present. This is the ENGLISH full version of World History. For the chr
$4.07
94
10,000+ downloads
|
BOOKS_REFERENCE
Army Survival Guide
MoMojo
Get the entire Army Survival Guide on your phone. Whether you are an avid hunter or outdoors man, or prepping for the Apocalypse this app is for you. Great when you hunt fish trap hike camp or any survival situation. Guaranteed to make yo
$0.99
87
5,000+ downloads
|
BOOKS_REFERENCE
Moon Phase Pro
Udell Enterprises, Inc
<b>All-new HD imagery!</b> 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 from your location - the moon tracks
$0.99
93
100,000+ downloads
|
BOOKS_REFERENCE
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