In call is falsely advertised

I would rank this app four stars as a text to speech system. Where it comes up short is when they claim it works while in a call, it doesnt. If you want this app as a phone speech aid or prank tool, IT DOES NOT WORK. People on the other end of the call will hear nothing. Good app but based on the instructions included Im pretty sure this company gas not used their own app.

Supitstrav about Speak it! Text to Speech, v2.5