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+---
+layout: page
+title: "Geofency"
+description: "Instructions for how to use Geofency to track devices in Home Assistant."
+date: 2017-08-22 19:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: geofency.png
+ha_category: Presence Detection
+ha_release: 0.53
+---
+
+This platform allows you to detect presence using [Geofency](http://www.geofency.com/). Geofency is a [paid app](https://itunes.apple.com/app/id615538630) for iOS that lets users to configure a request that will be sent when a geofence or iBeacon region is entered or exited. This can be configured with Home Assistant to update your location.
+
+To integrate Geofency in Home Assistant, add the following section to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  - platform: geofency
+```
+
+Configuration variables:
+
+- **mobile_beacons** (*Optional*): List of beacon names that are to be treated as *mobile*. The name must match the name you configure in Geofency. By default, beacons will be treated as *stationary*.
+
+A full sample configuration for the `geofency` platform is shown below:
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  - platform: geofency
+    mobile_beacons:
+      - car
+      - keys
+```
+
+To configure Geofency, you must configure (via the Webhook feature) to send a POST request to your Home Assistant server at `http://<ha_server>/api/geofency`. Use the default POST format, and make sure to include the API password if you have configured a password in Home Assistant (add `?api_password=<password>` to the end of the URL). Make sure to enable the 'Update Geo-Position' functionality for mobile beacons.
+
+Geofency will automatically generate the device tracker name used for geofences, and you will find it in `known_devices.yaml` after the first request. For beacons, the device name will be `beacon_<name from Geofency>`, e.g., `device_tracker.beacon_car`. 
+
+When you enter a geofence or stationary beacon, your location name in Home Assistant will be set to the name of the geofence or beacon location in Geofency. When you exit a geofence or stationary beacon, your location name in Home Assistant will be set to 'not home'. For mobile beacons, the location name will be 'not_home' whenever the beacon is entered or exited outside of a [zone](https://home-assistant.io/components/zone/), otherwise, it will be set to the name of the zone.