notifier
notifier · notifiers
A person or thing which notifies or provides notificationA person or thing which notifies or provides notification.
Meaning
1 sensesA person or thing which notifies or provides notification.
The e-mail notifier displays a small icon in the notification area when mail is received.
Origin
From notify + -er.From notify + -er.
Wiktionary, CC BY-SA 4.0 · source