Once the app has been installed you will be prompted to grant a set of permissions to the helper app shown below. These permissions allow the helper app to perform the full range of functionality that is supports.
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Once the app has been installed and launched you will be prompted to grant a set of permissions to the helper app shown below. These permissions allow the helper app to perform the full range of functionality that is supports. At this point you should open the app and disable battery optimisation as prompted.