Signal keeps your privacy at all times, even in your most important phone conversations. The main feature of this software is its encryption function, which makes it difficult for thieves or hackers to read your personal messages. Signal encrypts your text message to ensure that it stays confidential even if they are read by others. If you use this application in combination with the paid version, it allows the user to share their contacts with other people so they can easily be contacted in case they become lost. This way, both of you remain in touch whenever you wish. For a lot of users, the free version of this application is not suitable due to the fact that the applications can be easily downloaded from the internet. However, some may find this feature annoying. If you want to use this application on a daily basis, you should use the paid version, which is available for a certain fee. You may also consider using the freeware versions, as they may have limited features. Once you download the application, it is simple to install it. You will need a computer that has internet access. However, the program has been created to make it easier to use, so it works fine even on a mobile phone. The program can be downloaded for free, but many users have reported slow performance or other problems after downloading the free version. However, if you find that the download process is smooth, the free version should not be your first choice. Once you have downloaded the application, you will find a button on the main page that says 'Signal Free'.