I recently got back from a holiday without internet, when I got back heaps of my apps updated and one of them now continuously turns my Bluetooth on. How can I determine which app it is?
I have a rooted Nexus 4 running 4.4.4
For me it was FireChat.
With aSpotCat you can check which apps have the permission to turn bluetooth on/off.
Check in Android settings. Security and privacy --> permission--> Turn Bluetooth on. Check which apps you want to keep enabled.