Last March 5th, Facebook released the app Bolt App Lock -- a data-tracking app that could lock other apps, but pulled it out of respective online stores only a few days later.
Owned by VPN service Onavo Protect , a Facebook company that has been hooked in similar controversial issues before, Bolt App Lock doesn't fall too far from the tree. Basically, this app lets you take more security measures to apps you want to keep extra private. You'd think it all works out for your benefit if it weren't for the Bolt App Lock disclaimer on its Google Play listing: "We collect info about your mobile device and the apps installed on it... Because we're part of Facebook, we also use this info to improve Facebook products."
Doesn't feel very secure, does it? It's ironic that these VPN service caters to users who want to be extra secure with their data.
Once removed from online stores, Facebook stated the app was a mere "test".