What challenges do you anticipate in completing the project?
The only challenge I can foresee is the WIX site builder framework getting in the way. It may limit access to parts of the code.
Proposal:
I have been working with GPS systems almost exclusively for the last four, and one half years. Primarily with OpenGTS, GTS Enterprise, and Traccar.
Understand that OpenGTS, GTS Enterprise, and Traccar are written in Java, and require a Virtual Private Server (VPS) or a dedicated server with 4Gb or more of ram to run them. No doubt overkill for your needs.
The solution to what you have described could be as simple as these two steps:
1) Modify the mobile app to automatically log in when it starts, or when it sends the location.
2) Create a page, or page fragment on the website that requests the GPS location data for your mobile device, and display it.
I would need to look at the code you have now to come up with a more definitive answer, could you tell me a bit about it, or send me some code fragments?
Regards,
John H. Ward, Jr.