Damian Collins, a Conservative member of British Parliament, made the documents public on Wednesday after demanding them last month under threat of sanction from Six4Three.
Mr Collins alleged that Facebook maintained "whitelisting agreements" which gave select companies preferential access to valuable user data.
Internal Facebook documents, previously seized by Britain, confirm that the tech giant made a habit of sharing user data with other firms without user consent and tried to avoid bad publicity by obfuscating its data vacuuming. The defunct app developer obtained them as part of its ongoing lawsuit in California state court alleging that Facebook violated promises to developers.
MPs have released documents relating to Facebook which suggest the company deliberately suffocated rivals with its business practices.
Facebook is accused of using this data to assess "not just how many people had downloaded apps, but how often they used them".
Facebook touted itself as championing privacy four years ago when it chose to restrict outsider developers' access to data about its users' friends.
Damian Collins, head of the committee, added that Facebook shut off access to data required by competing apps, conducted global surveys of the usage of mobile apps by customers possibly without their knowledge, and that a change to Facebook's Android app policy that resulted in call and message data being recorded was deliberately made hard for users to know about. Kramer has been in a legal battle with Facebook since 2015 over developer access to user data.
The documents show an exchange between Zuckerberg and senior executive Justin Osofsky in 2013, in which they chose to stop giving friends' data access to Vine on the day that social media rival Twitter launched the video-sharing service.
Facebook warned that the cache of documents alone weren't enough on their own to understand the full story of the decisions it made and how they were reached.
Facebook had been aware that an update to its Android app that let it collect records of users' calls and texts would be controversial.