Voice-to-voice translation on the go. Quickly translate to and from over 50 languages worldwide, using the latest machine translation technology. It is the perfect tool for conversing with someone who speaks another language – whether you are traveling, working abroad, or learning a new language.
Added support for German text to speech. Improved help menus for using the app
You can find similar apps for FREE on the official Marketplace.
If developers want to charge for their apps use other people's technology free of charge, then they should not ask money for it !
This is basically just a GUI that uses other people's technologies without a license (if he had a license then he would be asking for more than 99cents !)