SKY NEWS - July 10 - Happn is a new dating app that uses GPS to match people to potential partners when their paths cross. The app is popular in France and has recently launched in London. When app users pass close to each other, a notification pops up, showing the profile of the potential match. It also displays a map showing the point and moment where the two paths crossed. Potential matches can be liked and when two people show interest in each other, they can chat and arrange a date.