Note: There’s another app with the same name and similar functionality, but apparently by a different developer, available for Android.
GPX-Viewer operates on a relatively-simple concept, but to our knowledge this is the only iPhone app that allows you to download and view raw .GPX files. Now, there are several apps on Android that provide this functionality, but due to how closed the iOS file system is, no other app has attempted to make this happen.
With GPX-Viewer, you can email yourself a .GPX file, or browse to one of the thousands of .GPX files in the Singletracks Trail Database using our mobile website, and download it into the app. Once the file is in the app, you can view the track data by itself, or overlay it on satellite imagery. You can also navigate the map–even without a cell signal. While the concept might seem simple, having this functionality available right on your phone is exceptional!