When the client device is compromised (and we know that iOS is [1]), it doesn't matter how secure the link is. If I were a sophisticated attacker and wanted to listen to your conversation, I could just tap your mic and audio output. [1] https://pentest.com/ios_backdoors_attack_points_surveillance...
At -3, it amazes me why people on here would down vote facts. It's not like you're disagreeing with me - you're disagreeing with reality. Sometimes, the stupidity of people on here is mind-boggling.