imo.im
imo instant messenger is a web-based service with video and voice chat functionality.
20 Alternatives To imo.im
Adium
Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Apple Messages
Learn more about sending and receiving text messages, photos, personal effects and more with the Messages app on your iPhone, iPad, Apple Watch, and Mac.
Contus Fly
Contus Fly, an instant messaging solution for real-time mobile chat app development. Build 100% customizable mobile chat . be reachable at any given time.
Conversations
XMPP client designed with ease of use and security in mind
Facebook Messenger
Facebook Messenger is a faster way to message.
Jitsi
Open-source video calling and chat platform.
LINE
LINE is a Japanese proprietary application for instant messaging on smartphones and PCs.
Nimbuzz
Get the latest, headlines, breaking, regional news fast.
Signal
Fast, simple & secure messaging. Privacy that fits in your pocket.
Tango
Tango allows you to easily connect with friends & family or make new friends.
Telegram
Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Threema
A secure, end-to-end encrypted Swiss instant messenger with a focus on privacy.
Tox
Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Viber
Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.
WeChat
WeChat is a complete mobile communication and private social networking app.
WhatsApp
WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Wickr
Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender…
Wire
Private & Secure Messenger
Zulip
Powerful open source group chat