GO SMS Pro
GO SMS PRO brings you cool UI, fast and convenient SMS/MMS experience. GO SMS Pro (yet FREE) is a huge enhancement for stock messaging app, much faster and more functions.
Open source instant messaging server and clients. Backend in pure Go (license GPL 3.0), client-side binding in Java for Android and Javascript (license Apache 2.0)...
Open source instant messaging server and clients. Backend in pure Go (license GPL 3.0), clientside binding in Java for Android and Javascript (license Apache 2.0), persistent storage RethinkDB. JSON over websocket (long polling is also available). Tinode is meant as a replacement for XMPP. Overall it's a lot like open source WhatsApp or Telegram.
Ad free Real time collaboration Group chat
Productivity Social Business and Commerce File Management Travel and Location Home and Family
ad-free chat-clients instant-messaging messaging real-time-collaboration group-chat chat-servers whatsapp
GO SMS PRO brings you cool UI, fast and convenient SMS/MMS experience. GO SMS Pro (yet FREE) is a huge enhancement for stock messaging app, much faster and more functions.
Free Android Android Wear
QIP Infium is a multiprotocol instant messaging client. It supports ICQ (OSCAR), Jabber (XMPP), Mail.ru Agnet (MRA), IRC, XIMSS, SIP, Twitter, Facebook and other.
Free Windows iPhone S60
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.
Free Android iPhone Web
Group messaging platform owned by Microsoft. It's absolutely free, whether you're talking to a group of friends, or texting with one person. Best of all, it works on nearly every phone, via push or SMS.
Free Personal Android iPhone Web Android Wear Blackberry Windows Phone Windows Mobile
Small group sharing from Google - create a space in one tap and invite people with a quick link.
Free Android iPhone Web