WhatsApp launched in 2009 as a mobile messaging app, and its short notification tone became one of the most recognised phone sounds as the service spread worldwide. Trimmed edits like this one circulate among gamers and video editors who need the alert without extra silence before or after it, so the pop can sit cleanly in a clip, stream or montage. Its popularity comes from instant recognition rather than novelty, since almost every viewer has heard the same alert from their own phone during chats, groups and media shares.