Telegram is a free cloud-based instant messaging platform.

WeChat is a social media with instant messaging, commerce and payment services application.

KakaoTalk (Korean: 카카오톡), or sometimes KaTalk, is a free mobile instant messaging application for smartphones with free text and free call features.

Signal is the most scalable encryption tool.

MightyCall helps small businesses and entrepreneurs drive and grow their business, taking care of customer experience.

Sicher is a freeware instant messaging application for iOS, Android, and Windows Phone. Sicher allows users to exchange end-to-end encrypted text messages, me…