Is there an app that will automatically translate?
Google Translate is one of the best all-round translation apps on the market. The app can detect more than 100 languages and provide offline translations to 59 languages. With their Word Lens feature, you can translate text on signs from 37 languages.
Does tap to translate work on iphones?
On your iPhone, copy some text you want to translate. Go to your Homescreen. Slide your finger over Paste and translate → [Language] and then let go.