Yandex.Messenger

Russian company's instant messaging app

StarChat

Free voice chat for Android

Talkie

Communication between mobiles without an internet connection

Rocket.Chat

Communicate with other users in this cross-platform chat

Meshenger

Make calls and video calls without internet connection

Element

Secure messaging platform

Mattermost

A private and secure chat

Bridgefy

Send messages via Bluetooth and without an internet connection

Crew

Instant messaging for work environments

Serval Mesh

Messaging without internet connection

Twist

Teleworking more efficiently

Mei

SMS evolve with this app

YoYo

Count your moves in a lot of voice chat rooms

Telepal

Telegram, but with many extra options

Auto Text

Automation of actions for calls and SMS

TeleFive

Messagin app based on Telegram

WhatsApp Messenger

The number one instant messaging application

Telegram

Fast, secure and versatile instant messaging platform

Azar

Make video calls with anyone in the world

KakaoTalk

Communicate by chat and video and voice messages

Messenger Lite

The lightweight version of Facebook Messenger for Android

LINE

One of the most innovative instant messaging apps

WeChat

One of the best chat apps

AyuGram

A Telegram MOD based on exteraGram

Slack

The 21st-century team communication tool

imo

Instant messaging and video and audio calls for free

WhatsApp Business

The WhatsApp app designed for businesses

Facebook Messenger

The Facebook app for messaging, voice and video calls

TextNow

Free phone calls and text messages

Messages by Google

Chat with all your contacts with Google's app

Microsoft Teams

More productivity and better company communications