One app that stands out above the others is 'miDrive' which has a more professional approach, is easy to use and feature rich for learners and instructors alike. The app can be used to find and contact an instructor in the local area, revise theory on the go, track lessons via your phones built-in GPS and offers a range of articles and video's to help with learners fears and concerns. No app is perfect but 'miDrive' is pretty near for most peoples, which is why I'm on there and have already had a few enquiries from potential customers.
If you're looking for an app to compliment your learning experience why not check it out for yourself in the Apple app store and the Android market. Click on 'miDrive' above for the full website experience!