What app can I text with for free without using wifi or a phone service?
Yep! You sure can! I always text people (to their cells) from that app :-) but you can't text to a y! Messenger account tho.Get the new textfree with voice cause their about to delete the old version of textfree!
What do u plan to use then??? Its like saying how do i use my phone without having a phone jack... U need to be connected someway... Or u could just try smoke signals =D