Hello! Sir
Very interesting in your project.
I am working in the professional IT development Group and have done so many similar projects.
I am good at PHP, Mobile App Development, Android, Geolocation and Google Maps API.
I have gone through your description carefully and understand your idea.
I can show you my previous works just similar with your project.
I am ready for your project now.
I'll never waste your valuable time and consume my effort for nothing.
We can discuss flexible budget.
let's discuss in detail over chat.
Good luck
From Konstiantyn.