Download this app if: you need translation on the fly.
With App2SD! TransDroid is a free translator that supports over 50 languages. Simple translation of words and sentences.
- Text to Speech
- Fast and easy
- nice interface
Translations: powered by Google
Advertising: AdMob and Mobclix
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It's useful — But, at the same time, you can get this kind of stuff on web sites too. A dedicated app is nice though, and I like the way the keyboards change when you select a new language.