In 2021, App Review helped over 107,000 new developers get their apps onto the store. This process can be iterative, since sometimes apps may be unfinished or contain bugs that impede functionality when they are first submitted for approval, or they might need to make improvements in its moderation mechanisms for user-generated content. In 2021, over 835,000 problematic new apps, and an additional 805,000 app updates, were rejected or removed for a range of reasons like those. As part of the App Review process, any developer who feels they have been incorrectly flagged for fraud may file an appeal to the App Review Board.