The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Monkey Island Inc.:
drop - leave an impression!Sharing just got a lot more exclusive and local. Take a selfie or fun photo wherever you are and drop it on the map for others to discover. Let your friends know where its dropped - and the treasure hunt begins! drops can only be unlocked and viewed in the area where they were taken. You can drop a pic whenever and wherever. So start leaving an impression around town for your friends and others to discover. Its all about connecting with people while they are standing in the exact same place you were when you took the photo. A new kind of shared experience that you can only get by using drop.***Please note: All drops are public. Even though your drops can only be viewed by another user when they are within proximity, we cannot prevent another user from capturing and saving your photo by taking a screenshot or using an image capture device while viewing your photo.