A site in conjunction with android and ios as a client-server application, what do you need to know?

Question

Mobile development

It is necessary to develop a website and an application for android and ios, so that it all works together as a client-server application and implement google or yandex maps with geolocation to determine the location, this is not all that needs to be done, of course, but the essence of the matter is that it is necessary to find a programmer for this, but we don’t know how to write a correct ad test, what requirements are needed from him and what knowledge he should have, who knows, please tell me

Answer 1

You need 3-4 programmers - 1 Android, 1 iOS and 1-2 web devs. In terms of requirements - just look at the finished applications from mobile developers and from webers, if you like it - take it)