Free, Worldwide, Encrypted Phone Calls for iPhone

Would you recommend this product?
2 Reviews5.0/5
Open Whisper Systems is killing it. RedPhone, TextSecure and now Signal.
does the person on the other side need the app as well in order to receive the calls?
Yep. Could be a big barrier for entry for more widespread adoption
This needs more upvotes
Great app for iPhone. I'm looking forward to video calls in the desktop app
Are you planning to add video calls to the desktop app?