DO NOT BUY
This app is a rip off. It does not give you any information that you would not find on the internet.Total ripoff
They charge $2.99 for every guide - the Notre Dame guide is virtually uselessRip off
The app is "free" but to access any content it's $2.99. When you pay $2.99 you get the visitor information that's free on the pamphlet/official website, as well as about 10 random "facts" about the location, all of which are free and easily available online. Navigation within the app is very confusing and difficult, and 9/10 times redirects you to purchasing yet another part of the app that has little to do with the attraction you're at (for example, close by different attractions or metro maps). I thought this was an "official" site app (most attractions in Paris have free official apps that include audio guides and maps) but I was wrong. This is a shameless, poorly executed money grab. Fool me once...