Quite a few situations in which we may need a good language translator spring to mind. ES-EN Translator is the free Spanish - English translator for Android smartphones and tablets that you were looking for.
An alternative to Google and Microsoft's translators.
A bidirectional translator: Spanish - English and English - Spanish
How this translation tool works is very simple. By installing the APK and launching the app you'll have an interface that splits the phone screen into two. On the upper part you have to input the text and on the lower part you can view the translation once you press the Enter button. It also comes along with the following features:
- Switch from Spanish-English to English-Spanish with one button.
- Possibility to input text to be translated via voice.
- Function to listen to the texts read out loud.
- Copy the text to be translated.
- Possibility to share the translation with other applications.