To use, both devices MUST be using the same wifi hotspot to connect to the Internet.
On the device you want to see pictures on, you go to website gh.gy and it will display a 4-digit code.
You simply start the app on your device and enter that 4-digit code. It's that easy! Then, you can scroll through your pictures and when you pick one, it is shown to the other user.
You can even generate an email link to email to another person so they don’t have to type in the address (they can just clink the link in the email).