Can I print the QR code and let others scan it? Will it work?

Yes, it works perfectly. You can print the QR code and the guests can scan it on their Android or iOS devices. It comes in handy if you want to share the WiFi network with multiple guests in a large gathering.

Do I need to regenerate the QR Code if I change the password or WiFi Name/SSID?

Yes, if you make any changes to your WiFi name or password, you must regenerate the QR code. Even a minor change like adding/removing space, a comma is not an exception.

Can anyone know my WiFi password from the QR Code?

Technically it is possible to extract the WiFi password from the QR code you are sharing. QR code reader apps can display the password after scanning it. So, don’t include personal information in your WiFi password.

Can the same QR code work on both Android and iPhone devices?

Yes, the single QR code is enough to share the WiFi passcode to both iOS and Android users. However, iOS officially supports sharing WiFi networks with other iOS devices without the need for a QR code.