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 Mark Drayton Ltd:
Send Location URL provides a quick and simple way to send a web link to your current location on a map via iMessage/SMS, email, or even Twitter/Facebook post.When your recipient(s) receive your message they need only tap on the link to launch their mobile map, and we'll drop a pin on your current location.