I'm looking for a mobile app (preferably iOS, but Android is ok), which works as a GPS logger, and makes my current location available via an API that I can access, live, on the web, without me requiring to interfere (like having to 'check in').
Essentially so that I could, if I wanted to, create a tracker for multiple devices on a webpage, where I manage the webpage myself. So, like, say, Whatsapp's 'Share my location' feature, but not just functioning within Whatsapp.
I've found GPS loggers that allow me to export my location data, and 'Share my location' apps that work within the scope of the app in question, but I have not found an app that gives access to my location, live, outside of the scope of the app.
As an alternative, I could have the user on the mobile device keep a browser-tab open which continuously polls the user's location, and have that synch with a server, but background location polling is more desirable.
Am I just not looking in the right place? Does this not exist?