Works with no Wi-Fi network
The two devices connect to each other directly, so a field with no router and no signal is fine. No account, and nothing about your script leaves the two devices.
iOSWorks differentlyAndroidAvailable
- iOSTwo Apple devices connect directly with no network at all. Paired with an Android second screen, the iPhone joins a network that device creates — an iPhone cannot create one, because no Apple API allows it, so the Android device is the one that shows the pairing code.