Iphone app that can say anything you type

I recently went to the doctor. Turns out i have strep throat. I live with my family and i'm trying not to talk to them so they don't catch it too! I was wondering if there's an app that can say anything that i type so i can talk to them that way?

Can siri already do that?

Yes it's called talk to iPhone and another Say to iPhone look at apple app icon