Is there a way to exchange data between cellphones without the internet?

1

Hi guys!

I’m writing an app that this functionality would be great!

Any ideias?

Bluetooth?
NFC?

I’m out of ideas

2

Like Firechat ?

A combination of bluetooth and Wifi Direct.

3

Good old sms in an automated way?

4

Like Twilio’s 2048 game :smile:

5

I liked that! I’ll check it out