Skull One said:If you are jailbroken, there might be a way but for stock iPhone users unfortunately there is not.
Thomasjtsi said:I'm not certain that you can lock specific conversations.... however you can lock your message application.
Thomasjtsi said:To Jailbreak your iPhone 4... you'll need to download redsnOw from the Dev Team's blog page. What iOS version are you on?
Thomasjtsi said:I'm not certain that you can lock specific conversations.... however you can lock your message application.