Google has announced a new Apple iPhone app that promises to let users translate text in 57 languages and voice in 15 languages.

According to the Google blog site, the new Google Translate iPhone app accepts voice input for 15 languages, and -- just like the previously available Google Translate HTML5 web app for iPhone -- users can translate a word or phrase into one of more than 50 languages. For voice input, users press the microphone icon next to the text box and say what they want to translate.