Editors' Note: The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
What's new in this version:
Version 4.1 has the ability to mute music and sounds separately, information about some objects revised, both landscape modes support, Solar Walk ad added, and lots of bugs fixed.