Similar to IMessage
Gadu-Gadu
Gadu-GaduGalago
Google Meet
Google MeetGoogle メッセージ
Google MessagesGroupMe
GroupMeHCL Sametime
HCL Sametime
ICQ
ICQ
Jami
Jami (software)Kik Messenger
Kik MessengerKopete
KopeteLINE Lite
Mattermost
MattermostMicrosoft Lync
Microsoft Messenger for Mac
Windows Live Messenger#Microsoft Messenger for Mac
Microsoft Office Communications Server
Microsoft Office Communicator
Microsoft Teams
Microsoft TeamsMiranda NG
Miranda NG
MSN Web Messenger
MSN メッセンジャー
Mumble
Mumble (software)
Pidgin
Pidgin (software)
Skype
Skype▲1 trendsSkype for Business
Skype for BusinessSkype for Business Server
Skype for Business Server
Telegram
Telegram (software)Telepathy
Telepathy (software)
Trillian
Trillian (software)