Free and actually looks quite good for basic useful Turkish - especially for free
Mobile vocabulary trainer
Make the most out of travel and waiting time: With Babbel Mobile you can study vocabulary even on your smartphone or tablet. Speech recognition and basic and advanced vocabularies are integrated.
Interactive
The Babbel apps contain 2000-3000 vocabulary words per language. All words are accompanied by images and pronounced for you by native speakers.
Speech recognition
With our integrated speech recognition you can practice your pronunciation and make significant progress. Lose that fear of speaking!
Review manager
Babbel gathers the words and phrases that you've studied and then presents them back to you for review at optimal intervals: all in good time. What you've learned automatically embeds itself in your long-term memory!
iPod/iPhone direct link:
https://itunes.apple.com/gb/app/learn-turkish-babbel.com-basic/id445360872?mt=8iPad direct link:
https://itunes.apple.com/gb/app/learn-turkish-babbel.com-ipad/id578223038?mt=8