Define locations and represent them with a name and emoji. Whenever you enter or exit one of your locations, re:loc updates your status. If you choose a house emoji, a co-worker will know you are working at home but will not know where your home is. Re:loc never discloses your actual location.
Re:loc creates geofences on your phone based on the places you create. When your phone detects leaving or entering one of these boundaries, it notifies the Re:loc app, which then contacts our servers to update your Slack status/emoji. Your phone's coordinates never leave your phone to trigger status updates, it is all done on your phone directly.