My phone is unlocked...I have nothing to hide. But someone is checking up on me anyway and I'd like to know who they are and what they're accessing. Is there a (hopefully free) app that will silently record what is done on my phone when I leave laying around unattended? Which apps they open? I know there are unlock attempt picture taking apps buy my phone isn't locked and that tells me who tried but not what they did. Any ideas? Thanks in advance.