GPS Speedometer Trip Computer!

Optimized for iPhone 4S, 5 ,5S, iPhone 6, 6 Plus, iPhone 6S, 6S Plus, iPhone SE, iPhone 7. 7+Features included-Speed limit alert system- Switch between mph or km/h mode.- Imperial and Metric unit settings.- Speed calibrate refresh button.- GPS accuracy indicator.- GPS distance accuracy indicator. Compass- Shows device real-time orientation to magnetic fields.- Ability to switch between true and magnetic North.- Location coordinates (longitude, latitude).- CourseShare- Start, end points, coordinates link email sending- Map screenshot email sending