Agreed. Facebook purchased third-party data to guide their acquisition strategy. Any other company could hire this firm and made the same decisions.

The selective access to competing apps, based solely on this information, is antitrust though. If the apps violate rules that apply to everyone, that's different, but that doesn't appear to be the case?

Edit: turns out Onovo had access to specific, proprietary data, acquired through it's own shitty apps, which facebook acquired. This is pretty shady.