Collect of Jake Ruston the student flushed with success after creating the world’s first mobile mapping app – that points out PUBLIC TOILETS. See SWNS story SWLOO. Fourth year Computer Science student Jake Ruston built the unique loo-tracking app to help people caught short find the closest public convenience. Jake, who studies at the University of East Anglia, came up with the brilliant idea after receiving sarcastic feedback from a tester of a previous London Underground app who said a toilet map would have been more useful. 12 February 2015