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# isDeviceMotionActive

A Boolean value that determines whether the app is receiving updates from the device-motion service.

```
var isDeviceMotionActive: Bool { get }
```

## Discussion

This property indicates whether [`startDeviceMotionUpdates(to:withHandler:)`](/documentation/CoreMotion/CMMotionManager/startDeviceMotionUpdates(to:withHandler:)) or [`startDeviceMotionUpdates()`](/documentation/CoreMotion/CMMotionManager/startDeviceMotionUpdates()) has been called since the last time [`stopDeviceMotionUpdates()`](/documentation/CoreMotion/CMMotionManager/stopDeviceMotionUpdates()) was called.

## See Also

[`isDeviceMotionAvailable`](/documentation/CoreMotion/CMMotionManager/isDeviceMotionAvailable)

A Boolean value that indicates whether the device-motion service is available on the device.


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