1, MSNMicrosoftLiveMessenger, MSN application is an instant messaging software developed by Microsoft, with very comprehensive functions;

2.YahooMessenger, an instant messaging tool launched by Yahoo, the world's leading Internet company, is one of the mainstream international instant messaging tools;

3.Skype is an instant messaging software of a global VoIP company, which has the functions of video chat, multi-person voice conference, multi-person chat, file transfer and text chat.