Communication platform.

Hello,

Let me explain a little bit the project and then we can discus about the communication platform.
The project is a "room escape" portable. Will be some Arduinos with some switches and other stuff link with a tablet.
As there will be some players playing at the same time I will like to connect all games to share the score in real time.
My ideas are:
1 - Arduino and tablets (android) will communicate with Bluetooth. And tablet would be connected to a local server (maybe a raspberry pi) to share the score.
2 -Arduino has a wifi client (esp8266 module) and communicate with tablet throw a local server.
3- Arduino has wifi (esp8266 module) and communicate with tablet but the server is one tablet.
Let me know your opinion.

Do not cross-post. Other thread removed.

BUM!

dosnabs:
BUM!

Who was the intended recipient?