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Popular Paid Books & Reference apps among people in their thirties

English German Dictionary
movin'App
Offline English-German Dictionary Englisch-Deutsch Wörterbuch offline * More than 168.000 words and expressions * Bookmark your favorite translations for fast reference * Works offline! No Internet connection needed, perfect for your trips
$2.74
60
100+ downloads
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BOOKS_REFERENCE
Zenith Mobile Telescope
Wikitude GmbH
Zenith is a telescope for your Android phone. Explore the night sky by pointing your mobile phone towards sky. Watch hundreds of stars, their constellations, and our solar system's planets. View great images of galaxies and nebulae from the
$4.12
82
5,000+ downloads
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BOOKS_REFERENCE
Learning Python
O'Reilly Media
Learning Python, 3e, published by O'Reilly Media Buy this DRM-free ebook today! Powered by Aldiko. With this hands-on book, you can master the fundamentals of the core Python language quickly and efficiently. Once you finish, you will kno
$4.99
82
1,000+ downloads
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BOOKS_REFERENCE
Aldiko Book Reader Premium
Aldiko Limited
Download one of the best Android eBook Readers now! β˜…The leading eBook application for the Android platform β˜…20+ million users from over 200 countries Features: βœ” Support EPUB, PDF formats as well as Adobe DRM encrypted eBooks. βœ” Suppor
$3.09
82
100,000+ downloads
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BOOKS_REFERENCE
Calibre Library
Tony Maro
Connect wirelessly to your Calibre e-book library or other Stanza source. Browse and download your e-books on the go. ** Fully Tested on the new Nexus 7 Tablet ** Pair with Nook, FBReader or another e-book reading application for a compl
$2.99
74
10,000+ downloads
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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
94
100,000+ downloads
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BOOKS_REFERENCE
English and German Dictionary
Dieter Saken - Nifty Apps
Nifty Words is a very fast translator and dictionary for English and German (Englisch und Deutsch) words. It even includes English phonetics. Beside that, it does not have unnecessary functions and screens, but therefore it is simple, fas
$2.30
91
5,000+ downloads
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BOOKS_REFERENCE
Fretter - Chords
Umito
2.0 released! - Custom instruments and tunings - Updated interface - Favorites - Scales If you are looking for a chord reference app: this is what you need. Most cool feature: Reverse chord lookups! Fretter dynamically generates chord dia
$2.74
91
1,000+ downloads
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BOOKS_REFERENCE
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