Star Tracker is described as 'Just hold up and point the device to the sky and have fun! You can see any stars, constellations and deep sky objects you are watching in real time' and is a Star Map in the education & reference category. There are more than 25 alternatives to Star Tracker for a variety of platforms, including iPad, iPhone, Android, Android Tablet and Windows apps. The best Star Tracker alternative is Stellarium, which is both free and Open Source. Other great apps like Star Tracker are Trail Sense, Sky Map, KStars and Gaia Sky.
Vortex Planetarium - Discover the sky.
The most comprehesive, fully featured Planetarium on Android.
Used by amateur astronomers and armchair observers alike, Vortex Planetarium offers a window to the skies in stunning detail.
Features
Augmented Reality (with camera support) .
Warp to distant stars and explore various exoplanets like lava worlds, water worlds, earthlike planets or massive jovians with Stars and Planets planetarium app and astronomy guide. Space is awesome and the universe is at your fingertips!
Try out the solar system simulator to see the distance to Mars or other planets. Point your iPhone to the sky and explore the movement of the sun, moon, planets and stars across the sky while you change time by swiping the display.
