with this app you could prevent apps to receive broadcasts, e.g. "sd-card inserted" oder "w-lan connected". all with android-18 shipped broadcast actions are integrated. others will be collected from time to time and marked with an exclamation sign. technical limiation: actions wich are only sent and not received by any app could not be found. changed settings are applied after a reboot. for boot_completed please use the app bootmanager. to restrict system apps you have to donate. important your device has to be rooted to install the required x-posed framework: http://tinyurl.com/cd46qco donator-app & features: https://play.google.com/store/apps/details?id=de.defim.apk.receiverstop.donator