2016/02/08 – Sometimes it shows a very high device usage when OFFTIME is started (e.g. at the first use in the morning OFFTIME shows device usage for the whole night). However, this usage isn’t show in the activity log and is also cleaned during the further use of the app and device.
A bug fix is currently tested – it should ship soon– Reviewed by Apple, new Version available in the App Sotre
wait for the updateinstall the Update (Version 1.2.7)