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It helps, but a lot gets through. I hate Apple, but I use an Apple phone because of this reason. When I submit an app to Apple, it takes 2-10+ days for approval. Google? An hour or less. Google has promised to make changes to reduce these issues, but the stance on security is very different.

LOL yeah - Google is openly mining and selling our personal data anyway. What do they care?!
:-/

Google has limits on what they mine and how it is used. At this point you can assume most everyone is data mining. Google has a lot of protections in place to protect that data and assure it is anonymous where these third party companies do not even disclose they are collecting data, what they collect, what they do with it, and if it is even protected and anonymous (likely neither).