Hello!
I'm working with GPS tracking systems for 10 years.
I have developed GPS tracking applications that are using in Russia, Turkey, Belarus, Ukraine, Azerbaycan, Emirates, China and India.
For GPS tracking you can use more than 100 tracking devices or smartphones (Android or IOS).
System supports a large set of sensors and equipment.
At a moment system serves about 30000 trackers all over the world.
System can be installed on your windows server with your logo and some changes