Fast, as in it's fast for users to classify areas. Crowdsourced solution with a gamification mechanic. Unfortunately it doesn't work on my old android phone, bu

Fast, as in it's fast for users to classify areas. Crowdsourced solution with a gamification mechanic. Unfortunately it doesn't work on my old android phone, but it looks promising. There's an audio interview on BBC Radio from the creators here also: http://www.bbc.co.uk/programmes/p040g4qr http://www.bbc.co.uk/programmes/p040g4qr