Lonely Planet has launched a new walking tour app for visitors to London to get close to the Royal Wedding experience before the big day.
The audio tour, available free from the iTunes store, follows the route that the newlyweds will take after the wedding ceremony on April 29.
It takes in 13 sites on the legendary route between Westminster Abbey and Buckingham Palace - regularly used for ceremonial processions - which is likely to be crammed with well wishers on the day.
Some of the most famous include 10 Downing Street, the Women of World War II Monument and St James' Palace, where William was resident for some of his childhood life.
Users can explore at their own pace using the location-aware map, skipping stops when necessary.
It's just one of several Royal Wedding travel apps which are now available in the iPhone App Store, and although Lonely Planet's excellent reviews suggests that it's likely to be among the best, there are several others for visitors to try.
Appstillery's iDo (£0.59/€0.99) allows fans to follow the wedding through quirky hand-drawn maps, while BlueYellow Media's Royal Wedding Essential Guide (£0.59/€0.99) offers additional royal trivia and photos.
RWedding (£0.59/€0.99) displays a map "tracking the position of the bride and groom" and even Buckingham Palace got into the Royal Wedding app game this week, launching an iPhone and Android guide to previous weddings through the years.
Royal Wedding Essential Guide: http://itunes.apple.com/gb/app/royal-wedding-essential-guide/id427716727?mt=8
Royal App: http://www.royalcollection.org.uk/default.asp?action=article&ID=931