Texting with Wi-Fi for iPhones?

So today I got an iPhone and got rid of my blackberry phone, but where I live has no signal. And my blackberry phone would connect to the Wi-Fi and I could text people, I was wondering is this feature was available for iPhones. If not, is there any app or something that I could use for free to text other peoples phones?

Iphones connect to Wi-Fi and work the same way.

All iPhones automatically connect to Wi-Fi! Just go in to your setting to connect it! Depending on what network you are on will depend on how good or bad your signal is!
Hope this helps!