Etikett

A light-brown or yellow rectangular tag, as labelled and attached to a key. Depicted at various angles punched with a hole, generally with a metal ring or loop of string.

Commonly used to represent a price tag or metadata tag as well as for various senses of label.

WhatsApp's is white. Apple removed its ring from earlier designs. Samsung previously featured the easter egg initials HMJ, while Google's design previously featured two tags.