Texting app

[JAY?]

Is there an app similar to whatapp that runs off of wifi but doesn't need service or a working phone number?

 

[NotAnFBIagent]

Imessage on iphone
Hangouts is the Android equivalent

 

[Neil Tyson]

Is there an app similar to whatapp that runs off of wifi but doesn't need service or a working phone number?

bbm
kik