Hope that helps Its possible. Just you need to save the lat long on your server of every logged in user. And while any client i.e. Android or iOS app login the app you can have an endpoint that returns the location of all logged in users in server. For server component, you need to develop one endpoint to save the lat long and one endpoint to fetch all the lat long's saved on server.
will be helpful for those in need The solution is even easier than that and won't require any conditional statements: When clicked from an iOS6 device, links to maps.apple.com/maps?q=cupertino are opened in Apple's native mapping application. But on other mobile devices and computers, it redirects to Google Maps (at maps.google.com/maps?q=cupertino) instead.
Getting coordinates based in direction in Google Maps/Apple Maps in Objective-C