I have known of the Skyscanner web site and have been using it online, along with Travel Jungle, for some time to find cost-effective flights at viable times. The Skyscanner iPhone app has just been updated and is now very quick and easy to use. It offers clear choices, stores previous searches and enables the user to share flight options via email. It also links directly to airline web sites to complete a booking. The only downside is that you have to re-enter all the data into some airlines’ web sites. However, this is a comparatively small price to pay for the ease of identifying the best flight option. (N.B. Don’t mix this up with Sky Scanner (two words), a different app that provides an augmented reality view of flights above you).