Apple has removed the Parler social network app from the App Store for violating policies, including not providing an updated moderation plan or an updated app with objectionable content removed. Many of these posts are found on social networking app Parler and contain threats to Vice President Pence, police, and even Twitter. Parler must remove all objectionable content from the app, create a moderation improvement plan, and resubmit the application binary for review. Apple told BleepingComputer that the app was removed as Parler did not adequately address the threats of violence posted on their service.
Source: https://www.bleepingcomputer.com/news/apple/apple-removed-parler-from-the-app-store-for-inciting-violence/