I don't recall noticing any difference, also been using since first day. I don't know how to make it not run all the time, but I sometimes shut it -- and a bunch of other things -- off if I feel like the phone is getting laggy. I don't know if that's something you're supposed to do, anyway, shut the phone off all the way. I think I do it maybe every 3 or 4 weeks. Should I be doing that more?