KMouth is described as 'program which enables persons that cannot speak to let their computer speak, e.g. mute people or people who have lost their voice. It has a text input field and speaks the sentences that you enter. It also has support for user defined phrasebooks'. There are seven alternatives to KMouth for a variety of platforms, including iPhone, Linux, Online / Web-based, Windows and iPad. The best alternative is Read Aloud, which is both free and Open Source. Other great apps like KMouth are eSpeak (Free, Open Source), Gespeaker (Free, Open Source), ReadSpeaker (Paid) and Voice Dream Reader (Paid).
Voice Dream Reader lets you listen to any document and ebook using text-to-speech. Text-to-Speech - One premium Acapela voice of your choice free with the purchase of the app. - 36 built-in iOS voices in 27 languages are also available for free.
iPlayText reads text to you. It turns wikipedia articles into podcasts. It gives your tired eyes a rest. Features include: • No ads. • Works offline, no network required. • Listen to arbitrary text in any of the 30+ supported languages (see list below).