Remarkable Text To Speech is the easiest way to generate human-quality voice recordings for any video or audio project. Choose from hundreds of different voices, type in some text, and simply export the generated audio files into your YouTube video, podcast, demo, or tutorial.
Supports iPhone, iPad, and has a full-fledged Mac app which makes it simple to generate human-sounding speech on any Apple platform.
Remarkable Text To Speech is free to download. You can create an unlimited number of voice snippets using the built-in voices for free. Standard and High Quality voices require credits per character which can be purchased in the app.