Why we're obsessed — This surprising editor favorite shows the current location of family and friends. It can be creepy, but it can also be useful. Set up alerts for when someone leaves or arrives — or notify others when you've left or arrived. Living director Annie Gabillet shared this tip: "If you don't want to give people access to your location all the time, you can set up time windows, so they just have it during a road trip, when someone is picking you up at the airport, or for a night out, for example."
How much it costs — Free
Who can download it — iOS only (Want an Android-compatible version? Try Jink)