Displays Passbook (*.pkpass) files & shows the Barcode (QR, PDF417 and AZTEC format). It can be used also when offline. This app is a viewer for passes - a pass could be a e.g. boarding-pass for your next flight, a coupon for a nice hot beverage on the destination, a movie ticket, a membership card - there are a lot of possibilities. Basically it is a replacement for a piece of paper or plastic you would normally have to carry with you - so lets save some trees and reduce waste! <b>How does it work?</b> There are so called espass or pkpass files - you can open them with this app - e.g. when you receive them via email or get an Download-option. The most important content is the BarCode ( QR , AZTEC & PDF417which authorizes you most of the time - but it also has other interesting content like a description - often a time ( that you now can add to your calendar ) - often also locations ( to give you directions ) - just try It out! The app is offline usable once you downloaded the pass!