Software
We've compiled a list of 25 free and paid alternatives to Symphony. The primary competitors include Tox, Riot.im. In addition to these, users also draw comparisons between Symphony and Jami, Threema, HipChat. Also you can look at other similar options here: Social Software.
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Voice, video and chat communications, secure, decentralized, strong privacy and freedoms.
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ChatSecure is a free and open source messaging app that features OTR encryption over XMPP.
51
Off-the-Record (OTR) Messaging allows you to have private conversations over any instant messaging...
39
Encryption plugin for Pidgin, providing up to 4096 bit RSA encryption using the NSS crypto library...
38
Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
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Chat, SMS, and share all of your files all in one place.
Chat, SMS, and share all of your files all in one place.
Web-Based
Chat, SMS, and share all of your files all in one place. Perzo is the secure and more productive solution to your communication needs.
Perzo is a secure communication application that is designed for professional and personal use. Perzo helps you organize your interactions and manage your time with your family, friends and colleagues so that you can achieve your interests timely and in total privacy.
Perzo is universal. Perzo allows you to communicate and share any type of information securely and effectively regardless of the device you are on, so that those who are closest to you are always within reach. Perzo is available on any modern HTML 5 compliant mobile browser and will soon be available on iPhone and then on Android.
HTML5 Support
Encrypted chat
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