I'm trying to select the best anti-theft app
I mean no disrespect to you or the developers of security apps, but I believe the best security for your droid is a front pocket for it alone.
Just like a rear pocket for your wallet, tap them when you get up. And if you have to use one, keep it in your hand until it goes back in its pocket.
Caveat: I do have Where's My Droid
installed, but I donít expect any better results from losing a droid than a wallet. With either, either it falls into helpful hands or I never see it again.