Facebook had their Onavo VPN app removed from Apple’s app store after it was discovered that the app violated Apple’s privacy policies, this happened last year.
Now Facebook has decided to remove their Onavo VPN app from the Google Plat Store, this is after it was discovered that the company was using code from the app in their Facebook Research App.
Facebook recently had their developer certificate revoked after it was discovered that the company was using apps which were supposed to be internal only externally. This was discovered by TechCrunch recently.
Since then Apple has restored the company’s developer certificates and is allowing Facebook to run its internal apps again.