"The cosmos is all that is, or ever was, or ever will be." - Carl Sagan These are the words of the celebrated astrophysicist, Carl Sagan, whose work .. Read more
The Fourth Dimension is a 30-page interactive book that explains a single mathematical idea in language that anyone can understand. Instead of static images or canned videos, this app employs a unique.. Read more
Tired of playing word games? If your goal is to ACTUALLY SPEAK a new language … are vocabulary-building apps really the right tool? Pimsleur is--uniquely focused--on conversational skills. We won’t .. Read more
Join over 50 million people already using Memrise to learn as fast as humanly possible - while having fun! Learn Spanish (Mexican and European), French, German, Japanese (Kanji), Italian, Korean, Chi.. Read more
Star Walk is the most beautiful stargazing app you’ve ever seen on a mobile device. It will become your interactive guide to the night sky, following your every movement in real-time and allowing you .. Read more
Stuck on a difficult homework problem? Studying for a test or getting prepped for a final exam? Get real help, real fast with the Chegg Study® app. The homework help used by millions of students let’s.. Read more
Star Walk HD is the most beautiful stargazing app you’ve ever seen on a mobile device. It will become your interactive astro guide to the night sky, following your every movement in real-time and allo.. Read more
SkyView® Lite brings stargazing to everyone! Simply point your iPhone, iPad, or iPod at the sky to identify stars, constellations, satellites, and more! Downloaded over 27 million times. If you like.. Read more
*** Star Chart is now FREE! *** The top educational & augmented reality astronomy app - download and find out why over 20 million people use Star Chart! You can now have a virtual star chart in your.. Read more
Point your iPhone or iPad like a magic lens into the night sky, and see in real time what stars, planets, and constellations hover above. Stargazing has never been so easy! This app is a streamline.. Read more
The Cosmic Watch 2.0 is a high quality 3D planetarium and timepiece. This powerful educational tool renders stunning graphics of the earth and sky in real time. It's a playful and entertaining introdu.. Read more