The Signal app makes it easier than ever for users to make calls worldwide that are not only free of charge but also encrypted for enhanced security. The app will appeal not just to those looking to save a dollar but also those weary of having their calls scrutinized by unsavory people and organizations. The app is claimed to be good enough to deal with intrusions by everyone from basement hackers to sketchy government organizations.
The Signal app currently only works with iPhones, but eventually hopes to become a unified communication platform compatible with Android as well as browsers. The present iPhone app is expected to support text messages within a few months.
The app was developed by Open Whisper Systems with the help of Twisted Oak Studios and designed by Tyler Reinhard.
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