Lets you request others location. Location is not shared until requested and then granted. If denied, you can include a reply. Locations can also be public, private, granted access only. Locations can be scanned, edited and verified by users with acces to that location. *Only on request does it record or share your location.
More ideas here: https://docs.google.com/document/d/1mW8Zaeg1oDVU9SOGF9t33hoKcpe2axUBPYKARXeSEYc/edit?usp=sharing or https://goo.gl/J70iC8