iOS doesn't offer much in the realm of TTS either. Siri has such a good voice but there is no API to make your iPhone or iPad talk from your own app. OpenEars

iOS doesn't offer much in the realm of TTS either. Siri has such a good voice but there is no API to make your iPhone or iPad talk from your own app. OpenEars has made a decent TTS engine (based on flite) but it is far from the top of the line engines offered by Acapela, Ivona, and NeoSpeech.