A simple and easy to use odometer. GPS Odometer only does one thing, and does it well: measure distance traveled. Includes run in background capability. Ideal for almost anything that requires measuring outdoor distance traveled such as walking, running, driving, boating, hiking, horseback riding. Note that GPS does not work well under a roof. For best results, use outdoors. Features: - Accurate to within 1 percent when compared to most car odometers under normal driving conditions. - Includes a timer. - Includes a lock to help prevent accidental reset of your trip. After unlocked, it locks back in a few seconds, or you can lock it yourself. - Includes displacement readout (straight line distance from your starting point) - Average or current speed readout. - Includes meters, kilometers, yards, feet, miles and nautical miles - Approximates distance traveled in some GPS dead spots such as driving through a tunnel by adding the as-a-bird flies distance to your trip. Distance units include: - Kilometers - Miles - Nautical miles - Meters - Feet Speed units include: - Kilometers per hour - Miles per hour - Nautical miles per hour - Meters per second - Feet per second Benefits of the paid version: - Ability to have multiple trips. Each trip can be stopped and started independently. Several trips may be running at the same time. - Receive notifications while the application is operating in the background at distance intervals of your choosing. - Custom units readout. For example, you want to know how many calories you have burned. You can customize this to include anything that has a linear relationship with distance traveled. This can be different for each trip. - No advertisements. Please note: - GPS Odometer does operate in the background if you leave it running and exit with the home button. Either pause all active trips or exit with the back button to prevent the application from operating in the background. The timer stops when the trip is paused. - To change the main page display, tap the unlock button and notice the three green boxes that temporarily appear. Each button adjusts a different part of the display. - You can change the language to English in the application settings. The developer's native language is English. Please also note that the operating system may suspend the application while it is running the background. Common causes for this are: - The app has run in the background for 4 hours without user interaction. - Battery Saver is active. - Device memory is low. - The user disables Location Services on the phone. - Another app begins running in the background. In the event the the application is suspended while running in the background, any active trips will be paused and an alert will be triggered. Alert notifications: - The app was killed while running in the background. - The user exited via the back button with an active trip and any active trips were paused. - The app is running is the background but the user has not moved in 15 minutes. This setting can be changed. - The app has been running in the background for over 3 hours without user interaction. This will show every 5 minutes until the operating system kills the app after 4 hours in the background. This setting can be changed.