Automatic wifi changer

Hello, I would like to develop an app for android that connects to a wifi network (eg Mymeter) collect data at a certain IP address (eg [login to view URL]) disconnect from the network (eg Mymeter) and connect to another network (eg Mywifi), connect to a mailbox or a cloud service and store the collected data ... All automatically (maybe with the settings for the times and the ways to do it ..) this in order to make remote values available in a local network available .. Can you give me an idea of the costs and timing for development? Thank you Bye