Default [Q] droid RAZR lock screen help

I have been looking for lock screen mods that are stable and don't require rooting for the droid RAZR (Verizon). I am trying to avoid rooting the phone because I use it for everyday task and need a stable platform. I have used some of the apps on the Gplay store but some of them caused my phone to lock up and I had to do a factory recover. (didn't know that Google only backs up the app not the data in some of the apps)