You can see details in our news story but here's a demo illustrating how it works.What's cool is that it's relevant all over the world, really useful and costs less than $1 from the iPhone app store.
Zak got the idea when he was among all those historic buildings at university and wanted to know more about them. And, he is still only 23 so expect to see more....
Tell us about the apps you like in the comings weeks and we'll feature some of them here.
Posted by Linda Fox
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