The updated version of the traveller app Quicket, has a 'social check-in' option that allows fliers to pry on their fellow passengers.

This app for smartphones and tablets facilitates ticket booking and flight tracking besides providing detailed airport maps.

Those users who choose their seats on the plane by clicking on the avatar linked to their social profiles can now be looked up with the 'social check-in' option. But thankfully, your consent is necessary for others to spy on you, Daily Mail reported.