Hangouts

Free

Hangouts is an instant messaging software developed by Google.

Tox

Open Source

Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption.

Signal

Open Source

Signal is the most scalable encryption tool.

Facebook Messenger

Free

Facebook Messenger is the official Facebook app that lets you have text conversations with all of your friends on the popular social network.

LINE

Freemium

LINE is a new communication app which allows you to make free voice calls and send free messages whenever and wherever you are.

ICQ

Free

ICQ is an open source instant messaging software.

WeChat

Freemium

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

Kik

Free

Kik Messenger is an instant messenger software.

Matrix.org

Open Source

Matrix is an open protocol for real-time communication. It is designed to allow users with accounts at one communications service provider to communicate with…

BlackBerry Messenger

Freemium

BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice …

Tencent QQ

Free

Tencent QQ (QQ) is an instant messaging software service.

GroupMe

Free Personal

GroupMe is a mobile group messaging app.

Dasher Messenger

Free

Dasher Messenger provids a way to message friends.

WhatsApp Messenger

Free

WhatsApp Messenger is an instant messaging platform owned by Facebook.

Viber

Freemium

Viber Free Messenger and Phone Calls.

Imo

Free

Imo free video calls and chat is a kind of Communication apps for Android.

IM+

Freemium

IM+ supports simultaneously major IM services, including Google Talk, Twitter DMs, Yahoo!, AIM/iChat, ICQ, Jabber (and Slack through Jabber), etc.

Wire

Free

Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser cl…

FaceTime

Freemium

FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime Audio is an audio-only version.

ChatSecure

Open Source

ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol.

Threema

Commercial

Threema is an encrypted instant messaging application for iOS, Android and Windows Phone.

KakaoTalk

Freemium

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

Sicher

Commercial

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…