Using Acapella TTS on Ios to read books , still possible?

Am one of many blind persons that purchased THe voice dream reader, and was using it to read all my books, but now, the price is very high for me. one of the things that i like there is that i can use acapella voices to read my books, because am an acapella fan, so, is there a payed or free app that uses acapella voices to read books? THanks in advance for any suggestions