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The basic idea...

"The basic idea behind open source is very simple. When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, if one is used to the slow pace of conventional software development, seems astonishing...
...The Open Source pages exist to make this case to the commercial world."    - Introduction to Open Source -

* ChatSecure

market download Thanks for being a part of the ChatSecure Android community. We are not actively developing this app anymore, but will continue to fix any critical bugs. ChatSecure for iOS and iPhone WILL CONTINUE ACTIVE DEVELOPMENT!

We are excited to share some great active apps that continue our mission of privacy and security...

Zom is built by the ChatSecure team, and makes it quick & easy for users to connect without a phone number, central servers or requiring any personal data. Zom is also available for iPhones and iPads.

Learn more at

Conversations is the best modern open-source, standards-compliant mobile XMPP client. It is lightweight and supports the OMEMO advanced encryption protocol. Great for advanced users.

Learn more at

ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing accounts on Google, create new accounts on public XMPP servers (including via Tor), or even connect to your own server for extra security.

Unlike other apps that keep you stuck in their walled garden, ChatSecure is fully interoperable with other clients that support OTR and XMPP, such as Xabber, Adium, Jitsi, Zom, Pidgin, and more.

?Strong Cryptography?

ChatSecure only uses well-known open source cryptographic libraries to keep your conversations private. Other apps may make claims about "military grade" security but, without publicly auditable source code and verifiable end-to-end encryption, you cannot be truly safe.

* XMPP with TLS certificate pinning.
* OTR for verifiable end-to-end encryption and forward secrecy.
* Tor to help bypass restrictive firewalls.
* SQLCipher to locally encrypt conversation logs.

? Free and Open Source ?

We believe in the power of free and open source software. The full source code to the iOS and Android apps is available on GitHub.

Want to get involved? Feel free to send us a pull request, request a feature or report a bug!

? WE SPEAK YOUR LANGUAGE: ChatSecure is available for friends who speak: ???????, ?????????, català, ?eština, dansk, Deutsch, ????????, English, español, eesti, euskara, ?????, suomi, français, galego, hrvatski, magyar, ?????, íslenska, italiano, ???, ???, ?????????, Bahasa Melayu, Nederlands, norsk, polski, português, ???????, sloven?ina, slovenš?ina, ??????, svenska, Türkçe, ??????????, Tagalog, Ti?ng Vi?t, ??(??), ??(??)
Don’t see your language? Join us and help translate the app:

Author: The Guardian Project
Version: 14.3
Market link:
Web site:

Source code:
Code license:
Market downloads: >250,000
Market rating: 4.0 / 5.0
Category: Top:/Applications/Communication

Added: 2012-04-30
Updated: 2017-02-21
Hits: 1348

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