Move a text between devices without messengers or cables: open this page on both, enter the same room code — and whatever you paste appears on the other device.
Anyone who knows the code can read the room, so use a longer code for sensitive text — or better, the one-time secret tool.
It's a temporary buffer for transfer, not storage — treat it as short-lived.
No — it's just a web page; works on any phone, tablet or computer.