The Vidometer app gets a four out of five. The app works great. It has three HUDs to choose from with different colors for them. it tells you speed, latitude, longitude, elevation, and other features. To beat all that it's free. You can change the HUD after the video is done as well you can edit out the beginning or end. You can upload straight to youtube, Facebook, and other websites. The app has deluxe features if you pay for them. These features are street maps, digital maps, and satellite maps. Great app. Two videos above are used with it showing two different HUDs.