# SunTrack > Sun tracking parameters for equatorial and altazimuth mounts. (iPhone/iPad app by ColuzziWeb.) - Source: https://appshunter.io/ios/app/suntrack/id336494804 (this page in markdown: same URL + `.md`) - Developer: [ColuzziWeb](https://appshunter.io/developer/331533564) - Category: Utilities, Navigation - Price: Free - Rating: 4.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 9 MB - Languages: American English - Released: 2009-12-19 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/suntrack/id336494804/reviews.md ## What is SunTrack? SunTrack provides two sets of parameters for tracking the sun with an Equatorial (Polar) or Altazimuth mounted apparatus such as solar panels. The Equatorial mount parameters include and tilt and elevation while the Altazimuth include azimuth and elevation. For accurate tracking, the Equatorial mount is assumed to be pointed due true south. The program determines the elevation and tilt of the surface of the iPhone or iTouch by accessing the output of the internal accelerometer.  The calculated elevation and tilt of the sun are variable by the location latitude and time of day. The latitude is user entered while the time can be hand set to test while if left running, the application will read the internal time of the iPhone or iTouch.  The error or difference between the calculated elevation and tilt and elevation and tilt of the surface of the iPhone or iTouch is also provided. All parameters (elevation, tilt and azimuth) are referenced to the face of the iPod or iTouch laying on the surface of the solar collecting device with the home button at the bottom. Both Displays, the Altazimuth and Equatorial, support automatic updates from the respective location services (Latitude and Longitude) dependent upon the hardware of the iPhone or iTouch host. The iTouch derives the location from the internet Wi-Fi connection while the iPhone can use the Wi-Fi as well as the internal GPS as well as the telephony service provider location. The result of the automatic update is available to the right of the latitude or longitude entry. The Altazimuth Display provides sun direction in terms of elevation and azimuth parameters for an altazimuth mount. For the Altazimuth measured parameters to work, the device must be an iPhone 3GS or 4 as only these devices support the measured azimuth records from the magnetometer. Any other device such as an iTouch will still support the old Polar or Equatorial parameters (Elevation and Tilt). ## Key features - Equatorial mount parameters (tilt, elevation) - Altazimuth mount parameters (azimuth, elevation) - Accelerometer for device surface tilt - User-entered latitude - Automatic location updates (GPS, Wi-Fi) - Error difference display ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/suntrack/id336494804/reviews.md ### 5/5 — Free is good. Simple concept *2012-06-30* Although I agree that the instructions could be better or even existing, I think that if you have solar panels you can figure it out. Basically, I think you orient the iPhone north south then pitch it and roll it so the iPhone position values match the calculated sun position. This point the device will be facing the sun. ### 3/5 — Ok. Bad instructions *2011-05-14* It would be nice is there was better instructions. As of yet I have not been able to figure out how to use it. ## Frequently asked questions about SunTrack ### What are the main tracking modes in SunTrack? SunTrack offers two primary tracking modes: Equatorial (Polar) mount, which provides tilt and elevation parameters, and Altazimuth mount, which provides azimuth and elevation parameters. The Equatorial mount assumes the apparatus is pointed due south for accurate tracking. ### How does SunTrack determine the sun's elevation and tilt? The app utilizes the iPhone or iPod Touch's internal accelerometer to determine the elevation and tilt of the device's surface. This data is then used in conjunction with user-entered latitude and the current time to calculate the sun's position. ### Can SunTrack automatically update my location? Yes, both the Altazimuth and Equatorial displays support automatic updates from location services. iPhones can use Wi-Fi, GPS, and cellular data, while iPod Touches derive location from Wi-Fi internet connections. ### What devices are required for the Altazimuth display's azimuth measurements? For the Altazimuth display to accurately measure azimuth records using the magnetometer, you need an iPhone 3GS or iPhone 4. Other devices, like the iPod Touch, will still support the older Polar or Equatorial parameters. ### How accurate is SunTrack? The app provides the error or difference between the calculated sun elevation and tilt and the actual elevation and tilt of the device's surface. This allows users to assess the accuracy of the tracking based on their device's orientation. ### Is SunTrack available on multiple devices? SunTrack is supported on iPhone, iPad, and iPod Touch devices. It was released on December 19, 2009, and its latest version is 1.8.1, last updated on November 2, 2025. ### What is the age rating for SunTrack? SunTrack has an age rating of 4+, making it suitable for a wide range of users. The app is developed by ColuzziWeb. ### Does SunTrack have ads? No, SunTrack does not contain advertisements. It is a free application with no in-app purchases. ## Version history (last 5 releases) ### 1.8.1 — 2025-11-02 Removed Dark environment ### 1.8 — 2025-10-28 Updated for the Swift 5 ### 1.5.8 — 2018-01-10 Version for IPAD that includes Sun rise and fall times as well as elevation throughout the day. ### 1.5.6 — 2011-02-23 Added altitude and vertical accuracy ### 1.5.5 — 2010-11-28 Adds lat long configuration stored in plist so that applications remembers last location. ## More apps by ColuzziWeb - [RADAR Range](https://appshunter.io/ios/app/radar-range/id593357337) - [MismatchErrorLimits](https://appshunter.io/ios/app/mismatcherrorlimits/id1503416053) All apps by ColuzziWeb: https://appshunter.io/developer/331533564 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*