Tinychat!

WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for iPhone, BlackBerry, Android, Windows Phone and Nokia and yes, those phones can all message each other! Because WhatsApp Messenger uses the same internet data plan that you use for email and web browsing, there is no cost to message and stay in touch with your friends.

With Viber, everyone in the world can connect. Freely. More than 460 million Viber users text, make HD-quality phone and video calls, and send photo and video messages worldwide over WiFi or 3G - for free. Viber Out can be used to make calls to non-Viber landlines and mobile numbers at low rates. Viber is available for many smartphones and platforms.

Facebook Messenger is a faster way to message. Reach friends right on their phones, get and send messages fast, message everyone at once and more.

See up to 8 friends on live video while chatting with them! Create your own room (appear.in/your-room) and send the link on chat, Facebook Messenger, SMS or email to invite people. No registration required, once people click the link, they'll appear with you!

FaceTime is a video calling software feature developed by Apple for the iOS and Mac OS.

Yahoo! Messenger is an instant messaging client developed by Yahoo! inc. for real-time communication of its users. It provides text chat, file transfer up to 2GB. conversations with audio and video, games. It also supports International Calling, Phone in Number and sending free SMS like Skype.

Google Allo is a smart messaging app that helps you say more and do more. Express yourself better with stickers, Smart Reply, and HUGE emojis & text. Allo brings you the Google Assistant.

With ooVoo you can make free, high-quality video calls, voice calls, and send text messages to easily connect with your friends and family. Make clear and crisp video calls with up to 12 people at a time, on any device. Try it now!

Zulip is a group chat app.

BlackBerry Messenger is a FREE messaging app available for Blackberry, iOS, Android and Windows Phone. BBM has unique features to protect your privacy and keep you in control:• Retract – The ability to take back messages and photos, even after you’ve sent them. Retract before they’ve been ‘R’ (Read) and they’ll never know!• Timer – The ability to set a timer so that a message or photo can only be viewed for a set amount of time before it disappears.• Private Chat – A special chat mode that disappears without a trace when you’re finished.• The BBM PIN – A way to share your contact information, without sharing your phone number or email address. This keeps you in control of who can send you messages at all times. Once blocked, they have no way of contacting you. »