talking goggles app not speaking on ipod touch fifth generation using ios 8.3

greetings all, I am using an iPod touch fifth generation with IOS 8.3. I recently got the app called talking goggles developed by sparklingapps. I tried to open the app and from what I heard in a podcast its supposed to talk and speak to you what camera detects. Well, it don't speak:( When I activate the still camera mode and hit the take picture button I get no speech:(. If the dev of this app is on here please reply. thanks lots.