We don't sell a different version of an app for each language, instead we offer one version containing support for all supported languages. This is so we can best help bilingual and multilingual users, and those starting to learn a new language.
Where our apps include recorded audio, we always use native speakers for each language, and in some cases we offer a further choice of voice (e.g. male and female). Where there is no recorded audio, the device's text to speech synth voice will read the words aloud.
Most of our apps allow you to edit existing content and add your own, and so you can add or replace text in any language, and record audio using your own voice. The languages already built into our apps are listed below. If you are interested in helping us make any of our apps available in additional languages, please contact us.