· · Windows
X, formerly Twitter, is a microblogging service from X Corp. The Windows app puts your timeline, notifications and messages in a desktop window.
LINE for Windows is the desktop version of the LINE messenger and social networking service, used for chats and calls on a PC.
WhatsApp Desktop is the official WhatsApp app for Windows, letting you chat and call from your PC with the account on your phone.
The official Snapchat app for Windows from Snap Inc., available in the Microsoft Store. It runs Snapchat for Web in its own window.