Hey i developed a new app and used Text To Text Speech but its not working on any device except my device. pl help.
Can you share some screenshots of you blocks and, specifically, of the properties you are using for TTS?
use the AvailableLanguages property to find out, if a specific language is available on the device
see also the documentation http://ai2.appinventor.mit.edu/reference/components/media.html#TextToSpeech