4/5 rating based on 50 reviews. Read all reviews for English to Spanish for iPhone.
English to Spanish is free iOS app published by Odyssey Translator
Jamezemare
This is barely more than a teaser for the full app. Clean and well designed, though. May check out the paid version if there's enough vocabulary there
Lucky soul
You can hardly learn 25-30 sentences. Not much useful. Very limited stuff.