RHVoice is a free text-to-speech engine designed for Android users. It offers a variety of natural and responsive voices in different languages, including American English, Brazilian Portuguese, Esperanto, Georgian, Kirghiz, Russian, Tatar, and Ukrainian. The app allows you to download the voices you want to use and supports TalkBack and other apps that use a text-to-speech engine for voice synthesis.

One of the special features of RHVoice is the responsiveness of the voices. They start talking immediately, making the user experience seamless. In addition, the voices are developed by volunteers and organizations supporting blind computer users. They offer free voices for blind users using screen-reader software.

RHVoice is a great app for those who are looking for natural and responsive voices in different languages. If you want to request or offer to support a new language, you can contact the developer on their support email. Please note that the app currently supports Albanian, American English, Brazilian Portuguese, Georgian, Kirghiz, Macedonian, Polish, Russian, Tatar, Ukrainian and Esperanto.