The app was released earlier this month and features a barcode scanner, an option to customise your search option and a wish list feature that allows the user to add products they are interested in and share them via email or Facebook.
The scanner can be used to compare prices of products in the Debenhams range. The department store also plans to add QR codes to its advertising and Debenhams’ store windows, which will allow users of the app to access exclusive offers.
Elsewhere Sky News has surged 11 places to number two while, more practically, car park operator NCP is a new entry at number 12.
The chart is powered by analytics app developed by with non-commercial branded apps removed.