App Detail » 3D Sun&Moon Compass HD

App Description

★★★StarTracker HD is out! Incredible fluid StarGazing experience at 60fps!★★★
It's so excited to introduce you the best 3D Sun and Moon Virtualization app on iPad!
This is a virtual 3D compass sphere which shows the position of Sun and Moon in the sky with perfect application of virtual reality technology! Full utilization of the build-in digital compass and accelerometer drive the best user experience.
With the cutting edge signal processing technique and applying the raw data directly from the build-in digital compass chip instead of the existing degree provided by Core Location API, this app has fast reaction and high accruacy, which is as fast as the gyro app Jobs shows on the WWDC ;)

Features:
- The 3D compass in a fantastic crystal ball will always point to the True North, no matter you rotate or position the phone in which direction.
- You could see the current position of the Sun and Moon simultaneously on the 3D compass ball, and the 24-hour orbit of the Sun and Moon will be displayed as a circle surround the ball.
- Display the time of Sun rise/set and moon rise/set.
- Time and date can be adjusted smoothly, the position of Sun and Moon will move simultaneously with the changing of the date or time.
- User can choose current location from a world map by trigger the top left location button, this is mainly designed for iPad WIFI version which may not get the location from core location framework.
- Smooth motion flow and quick response which is realized by cutting edge signal processing technique.
- Superb high quality graphic display by full screen anti-aliasing and HDR technology employment.

A wonderful experience you never had before!
Just Go and Enjoy it!

App Changes

• September 18, 2011 Price decrease: $2.99 -> $0.99
• September 19, 2011 Price increase: $0.99 -> $2.99
• October 08, 2011 Price decrease: $2.99 -> $0.99
• October 10, 2011 Price increase: $0.99 -> $2.99
• October 18, 2011 Price decrease: $2.99 -> $0.99
• October 19, 2011 Price increase: $0.99 -> $2.99
• October 29, 2011 Price decrease: $2.99 -> $0.99
• October 30, 2011 Price increase: $0.99 -> $2.99
• November 19, 2011 Price decrease: $2.99 -> $0.99
• November 20, 2011 Price increase: $0.99 -> $2.99
• December 21, 2011 Price decrease: $2.99 -> $0.99
• December 22, 2011 Price increase: $0.99 -> $2.99
• January 13, 2012 Price decrease: $2.99 -> $0.99
• January 15, 2012 Price increase: $0.99 -> $2.99
• February 18, 2012 Price decrease: $2.99 -> $0.99
• February 19, 2012 Price increase: $0.99 -> $2.99
• March 31, 2012 Price decrease: $2.99 -> $0.99
• April 02, 2012 Price increase: $0.99 -> $2.99
• May 11, 2012 Price decrease: $2.99 -> $0.99
• May 13, 2012 Price increase: $0.99 -> $2.99
• June 22, 2012 Price decrease: $2.99 -> $0.99
• June 24, 2012 Price increase: $0.99 -> $2.99
• August 03, 2012 Price decrease: $2.99 -> FREE!
• August 05, 2012 Price increase: FREE! -> $2.99
• September 14, 2012 Price decrease: $2.99 -> $0.99
• September 16, 2012 Price increase: $0.99 -> $2.99
• October 26, 2012 Price decrease: $2.99 -> FREE!
• October 28, 2012 Price increase: FREE! -> $2.99
• December 07, 2012 Price decrease: $2.99 -> $0.99
• December 09, 2012 Price increase: $0.99 -> $2.99
• January 25, 2013 Price decrease: $2.99 -> FREE!
• January 27, 2013 Price increase: FREE! -> $2.99
• March 08, 2013 Price decrease: $2.99 -> $0.99
• March 10, 2013 Price increase: $0.99 -> $2.99
• April 19, 2013 Price decrease: $2.99 -> FREE!
• April 21, 2013 Price increase: FREE! -> $2.99
• May 31, 2013 Price decrease: $2.99 -> FREE!
• June 02, 2013 Price increase: FREE! -> $2.99
• July 12, 2013 Price decrease: $2.99 -> $0.99
• July 15, 2013 Price increase: $0.99 -> $2.99
• August 24, 2013 Price decrease: $2.99 -> FREE!
• August 25, 2013 Price increase: FREE! -> $2.99
• October 05, 2013 Price decrease: $2.99 -> $0.99
• October 07, 2013 Price increase: $0.99 -> $2.99
• November 14, 2013 Price decrease: $2.99 -> FREE!
• November 16, 2013 Price increase: FREE! -> $2.99
• December 17, 2013 Price decrease: $2.99 -> $0.99
• December 20, 2013 Price increase: $0.99 -> $2.99
• December 30, 2013 Price decrease: $2.99 -> FREE!
• December 31, 2013 Price increase: FREE! -> $2.99
• January 31, 2014 Price decrease: $2.99 -> FREE!
• February 02, 2014 Price increase: FREE! -> $2.99
• March 15, 2014 Price decrease: $2.99 -> $0.99
• March 16, 2014 Price increase: $0.99 -> $2.99
• April 25, 2014 Price decrease: $2.99 -> FREE!
• April 27, 2014 Price increase: FREE! -> $2.99
• July 18, 2014 Price decrease: $2.99 -> FREE!
• July 20, 2014 Price increase: FREE! -> $2.99
• October 04, 2014 Price decrease: $2.99 -> FREE!
• October 05, 2014 Price increase: FREE! -> $2.99
• January 02, 2015 Price decrease: $2.99 -> FREE!
• January 04, 2015 Price increase: FREE! -> $2.99