Signal messenger works on Android smartphones and iPhones, and there are the desktop versions for Windows and MacOS.

The user account is registered to the phone number and does not require any passwords or pin-codes. The program interface is plain and similar to other instant messengers – it won’t cause any difficulties to the new users to master it. Users should upgrade the application each time the new version is released to make sure they receive the highest level of the safety protection. The developers of this messenger track all new challenges and issue regular updates. Besides, this instant messenger is open-source, and the experts were able to test it properly. The safety protocol used for the text app got the name Signal Protocol – it is one of the strongest encryption protocols in the world which is also accepted by other messengers like WhatsApp and Viber. This messenger is the relatively new software which was launched in 2015 as a separate application, but this product had been in development since 2010. Besides, the end-to-end encryption is applied to all data transferred by the Signal messenger.

It can be called the most private messenger, as it does not do gather any personal information or keep it on the server (the only data are the time of the last signing in, and it is limited to the calendar date only, not the definite time). There are many different communication apps on the market now, but Signal app stands alone due to its strongest accent on the safety of communication. Signal messenger is the free and non-profitable application for instant messaging and calls with audio and video support between this service users.

Signal messenger app download