My wife and I have iPhones and haven't had any issues with using the phone as a key. However tucked away in the release notes of iOS 11.2.6 (out today to fix the issues with crashing on certain chracter strings), there was this item:
Sounds like could apply to the Model 3 key issues? Would be hard to know for sure though unless either Tesla or Apple confirms it.
Fixes an issue where some third-party apps could fail to connect to external accessories
Sounds like could apply to the Model 3 key issues? Would be hard to know for sure though unless either Tesla or Apple confirms it.