Open Whisper Systems develops Signal Iphone app to make free encrypted calls worldwide

YEREVAN, August 5. / ARKA /. Developed by Open Whisper Systems, Signal is an iPhone app that makes it possible for users to make calls worldwide that are free of charge and encrypted techtimes.com reports. 

Using an existing number, Signal does not need a password to be used. It simply goes through contacts in a secure manner, immediately displaying which of the user's contacts are using the app as well so calls can be made immediately. It also takes advantage of a jiffy buffer tuned to mobile networks, turning to push notifications to minimize battery use without sacrificing response sensitivity.

"The hard part is developing a product that people are actually going to use and want to use. That's where most of our effort goes," said Open Whisper Systems founder, Moxie Marlinspike.

For those who don't want to take Open Whisper Systems' word on security, it is possible to check Signal's code because it is running on open source software. Interested parties are also encouraged to help improve the app, with the developer paying out a portion of the donated Bitcoins it receives for each merged pull request.

Aside from Bitcoin donations, Open Whisper Systems is also funded by government grants. Signal aims to be a unified communication platform not just for the iPhone but including Android and browsers as well. 

The iPhone app is expected to expand support for text messages later in the summer and compatibility with TextSecure for Android is assured. Open Whisper Systems is also working on combining RedPhone and TextSecure as well to create Signal for Android.

Signal for iPhone was developed with the help of Twisted Oak Studios. Tyler Reinhard provided the design for the app. -0-