GPS Diagnostic: Satellite Test

GPS Diagnostic: Satellite Test

By David Ryall

  • Category: Navigation
  • Release Date: 2015-09-10
  • Current Version: 3.2
  • Adult Rating: 4+
  • File Size: 180.72 MB
  • Developer: David Ryall
  • Compatibility: Requires iOS 8.0 or later.
Score: 4.5
From 152 Ratings


- Essential tool for your iPhone & iPad. - Test the GPS module. - Resolve GPS problems. - Supplements operation of your navigation apps. - If location cannot be determined then it diagnoses why. - Assists you in changing conditions to get a reliable location. - GPS, Galileo, GLONASS, QZSS full support. - Latitude & Longitude, and WGS84 included by default. -------------------------------------- FREE BONUS (for limited time): The Coordinates-Pro feature adds additional coordinate systems and datums to the app to let you accurately work with many paper maps and charts used by civilians, U.S. military and NATO forces for walking, sailing, and flying. The coordinate systems and datums included are: - Geodetic - United States National Grid (USNG) - Military Grid Reference System (MGRS) -Old and New - Ordnance Survey National Grid (OSNG) for Great Britain, - GEOREF - Global Area Reference System (GARS). - 174 Datums (e.g. WGS84, NAD83, NAD27, WGS72, ED50, ED79, OSGB36 etc....) -------------------------------------- - The developer is a professional software and hardware engineer working in the satellite space industry. He is a yachtmaster and pilot with a passion for navigation and Apple products. - Consistent 5 star reviews, see what users are saying: "Perfect Diagnostic Tool - This is the best app if you need to know the actual status of the internal GPS." "Excellent application - This was a much needed application for iOS devices." "Awesome, over used term but this app is - This app does what other developers said they could not do." - Lodestone Chart™ displays all essential GPS satellite information using a chart with only 4 bars. This dramatically simplifies the diagnostic process (Registered Copyright). - Uses the internal GPS of your iPhone or iPad. - Includes a Speedometer, Altimeter and Compass. - Location and altitude ( best-in-class accuracy and reliability ) - Speed (SOG) and Course (COG). - Heading (i.e. Compass) with ability to turn on and off the manual compass calibration. - Hardware information - Accuracy of measurements shown for pro users. - Imperial, metric and nautical units. These are the most commonly used and most useful navigation units. All easily changeable from the screen in use. - Does not require internet access and does not use cellular data. - Essential tool for any power user. (e.g. navigators, yachtsmen, pilots, app developers) - Share your location by text message, email etc. The format contains all essential information for improved accuracy. - Works with Garmin Glo. - GPS Diagnostic™ is a professional GPS test and measurement utility for your iPhone and iPad.



  • Lat/long in multiple formats

    By jalmberg
    I needed an app that would quickly give me my lat/long in whatever format I needed. DMS, DM, or D. This app does it. Perfect for my needs.
  • MGRS still no space for easy reading

    By ralaklak
    waited for the update for too long still no space on MGRS for easy reading
  • A very useful app with unique capabilities

    By FortCollinsEngr
    I believe this is the only simple app around to check GPS satellite acquisition. Gives lots of good data about accuracy activity and allows a reset of the GPS receiver. Simple, useful, and still supported well by the developer. Definitely worth the small cost.
  • Saved my iPhone 6 from doom.

    By Fbchtfhj
    This app allowed me to confirm a hardware problem with the GPS antenna. I didn’t want to dismantle my phone unless I was sure it was a hardware issue. With the app running I could slap the phone into my palm and see intermittent satellite signals come and go. That knowledge plus a $3 part kit has me good to go for a few more years!
  • Really great and useful app

    By PDC Larry
    The subject says it all!
  • Great App

    By animator200
    Let’s me see my actual coordinates and provides useful diagnostics on how my phone is determining my location. I like having access to raw data from the sensors on my phone and this gets me better information than any of the other apps I have seen.
  • Great resource

    By Help1222222
    Great informative app used for diagnosing gps issue in iPhone. My gps stopped working and tried all software settings and restores to fix with no success. The app helped me find it out to be a hardware issue that needed a new “F antenna flex cable” replaced in the phone. 8$ later off amazon and I fixed the issue rather than having to buy a new phone with the help of this diagnostic. The creator was very informative and responsive to emails. Thanks man!
  • Missing Data

    By GeorgeReview
    It does not include the types/makes of the satellites you are connected to. This is important because it has to do with accuracy Recently the FCC allowed U.S. customers to access the EU's Galileo satellites which are more accurate than the US's. I want to know if I'm seeing / connecting to them.
  • Mediocre

    By cmaylo
    For a paid app it could show a lot more detail gleaned from GPS data. There's a similar app on Android that does all this for free and it looks much better too, with toggles for dark sky friendly deep red theme. If you need to see if your GPS actually works, I suppose this is it. I'd return it if it I could considering how lacking in features it is compared to similar offerings on other platforms, like GPS Test on Android.
  • Useless junk app

    By dilshadbarwary
    I downloaded this app and was pleased at last I found a good app for gps readings as shown in previews of the downloaders therefore I purchased this app not caring about paying any cost of money just to get a good deal but I was shocked that this app didn’t work for only mere one time it didn’t work at all neither indoor nor outdoor,I don’t know what’s the reason beyond this,thanks for the developers maybe it’s a good app but it’s useless with me