Similar to WhatsApp

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  Coccinella

  Coccinella (software)
  
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  Cock.li

  
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  Fire (インスタントメッセンジャー)

  
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  Gadu-Gadu

  Gadu-Gadu
  
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  Galago

  
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  GroupMe

  GroupMe
  
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  HCL Sametime

  HCL Sametime
  
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  IMessage

  IMessage
  
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  Kopete

  Kopete
  
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  Mattermost

  Mattermost
  ▲1 trends

  
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  Microsoft Messenger for Mac

  Windows Live Messenger#Microsoft Messenger for Mac
  
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  Microsoft Office Communications Server

  
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  Microsoft Office Communicator

  
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  Miranda NG

  Miranda NG
  
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  MSN Web Messenger

  
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  MSN メッセンジャー

  
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  Pidgin

  Pidgin (software)
  ▲2 trends

  
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  Skype for Business

  Skype for Business
  
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  Skype for Business Server

  Skype for Business Server
  
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  Telepathy

  Telepathy (software)
  ▲1 trends

  
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  Windows Live メッセンジャー

  MSN Messenger
  
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  Windows Messenger

  Windows Messenger
  
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  Xfire

  Xfire
  ▲1 trends

  
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  Yahoo! Messenger

  Yahoo Messenger
  
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  Zimbra

  Zimbra
  
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  Aliwangwang

  
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  インスタントメッセージ

  Instant messaging
  
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  Elgana