Best (free) anti theft app?

[zetodavido]

So I don't know much about these apps, but there are a few I do regularly hear of:

Google Device Manager, Android Lost, Where's My Droid?

What's in you're opinion the best anti theft app?

I'm looking for an app that can, at least, locate the device, remote lock/wipe, and make a sound even if it's on silent (no way to do anything if it's off right?). If there's other features included that would be great too!
Thanks for your suggestions!

 

[Gekko]

Google Device Manager + Lookout

also - Gmail/Contacts/Calendar/etc. and Dropbox for Backup.

http://forums.androidcentral.com/android-applications/11496-dropbox-sugarsync-referrals-here-3.html

 

[Fairclough]

Avast if your rooted. It protects the details / tracking being lost in a hard reset.

- Android Central App. N'oublions jamais l'Australie, Villers-Bretonneux.

 

[suryakumar1]

google device manager, and there are so many other offering anti theft like cm security, kaspersky and more.. you can other here https://www.maketecheasier.com/best-anti-theft-apps-for-android/