Now this would be good advice if this was about security - but Facebook did not buy Onavo for that
Marketing Onavo within Facebook itself could lead to a boost in users for the VPN app, which promises to warn users of malicious websites and keep information secure – like bank account and credit card numbers – as you browse. But Facebook didn’t buy Onavo for its security protections.
The VPN service vil log all your movements and enable Facebook to target their adds towards you even more than before.
Onavo also is a vital instrument in destroying what little competition Facebook might have left:
However, it’s not likely that all Onavo users understand they’re actually feeding Facebook the information that allows it to take on any challenger to its social networking empire. (That empire also includes WhatsApp and Instagram as well as smaller acquisitions like tbh and MSQRD).
So if you think that VPN secures your internet activity - think again!
Normally a VPN is a good thing that can secure your internet activity; but that takes a good VPN that does not log (and uses) your every activity.
There is nothing private about the Onavo "Virtual Private Network" anymore - it is worse than no VPN.
So...don't use it unless Facebook pays your for it!
Facebook's story is that they will help to protect you and need to know the length of your penis to do so:
The app may collect your mobile data traffic to help us recognize tactics that bad actors use. Over time, this helps the tool work better for you and others. We let people know about this activity and other ways that Onavo uses and analyses data before they download it
So understand that Zuckerberg is all about Privacy and protecting us - good to know