How to implement additional functions in a mobile application with maps?

Question

Android

I need a mobile application with maps on Android, but with one feature. The moderator must mark geolocation points on the map (quite accurately - for example, some bus stop or some attraction), and users using the application online, once in that very place, will receive an online notification that they "took “ this point on the map. I understand that I need a server for a mobile application, right? Is it possible to implement it? What should you pay attention to? Thanks for answers!

Answer 1

Implementation is real. Yes, you need a server. Pay attention to the fact that with the right approach, the "server for mobile applications" does not stand out in any way.