Bistri is described as 'Video chat with anyone in one click! Simple, nothing to install, totally free' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Bistri, not only websites but also apps for a variety of platforms, including Mac, Windows, iPhone, Android and iPad apps. The best Bistri alternative is Signal, which is both free and Open Source. Other great sites and apps similar to Bistri are Telegram, Pidgin, WhatsApp and Wire.
Phoner provides business owner, sales people, lawyers, doctors, police officers and others with a second phone number to protect their identity and also gives the convenience of multiple phone numbers on one device.
KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free. (no SMS service)
qutIM - free open-source multiprotocol ( ICQ, Jabber/GTalk/Ya.Online/LiveJournal.com, Mail.Ru, IRC )
Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration with other people.
Messenger for Desktop is a wrapper for the official client messenger.com. Therefore it works like a regular browser which can only navigate to the messenger.com web app. MFD doesn't touch your messages, account or personal data. All that is handled securely by Facebook.
QQ is a widely used Chinese instant messaging service developed by Tencent, offering chat, voice, and video communication. It integrates social networking features like groups, forums, and customizable avatars to enhance user interaction.
Kadu is an open source Jabber/XMPP and Gadu-Gadu instant messenger client for Linux, *BSD, Mac and Windows.
Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all of your communications—texts, pics, calls, voicemails—all in one place.
Photo4tune is a free application that provides a simple way to capture and share the best moments of your life on your Android phone. All the photos you post will appear on the world’s map showing the place they were taken.
Free live webcam video chat room software for multiple desktop platforms including mobile platforms like iOS and Android.
Sesame is a messaging app that gives you a self-aware digital assistant to protect messages on your behalf: your own Personal Cognitive Messenger™.
Spotbros is an app where you can discover and share all types of content through public chat groups (Spots) or with your friends through private chats.
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