2.4, I don't know if my wife has a passcode on her phone. I don't think she does. I will not allow myself to access it. When she asks me to pull something up on it, I just hand it to her.
I have passcodes on my ipad and iPhone. The used to be a common passcode with hers. I changed them a while ago. One day when our kids were asking to use my phone, I told them what the code was in front of her. She seemed very offended that I had changed it. More proof to her that I couldn't be trusted anymore. I guess I must have been hiding something. I was. I didn't want her reading all this stuff.