Speak and translate is a free voice translation app. You can easily speak into any microphone and have your voice translated. Speak to any text translator. It supports voice translation and speech to text.

The best part of the application is that it is free. All you have to do is download it and you are good to go. It works on Android phones.

How to use it:

Select the language you want to translate from the list. You can select either English or any other language. After that, select the source and target language. After that, tap on the "Translate" button. If you want to translate by writing, select the text translator.

You can also use it as a voice translator. It translates the voice and makes it understandable. It supports speech to text. You can also listen to the translated text.