Developers confirmed reports that the FTC was investigating Twitter's policies towards app developers. The exact claims are unknown but are expected by SAI to revolve around its temporarily blocking UberMedia's apps and moves that have prevented rival ad services or have steered users away from visiting third-party hosting sites. Concerns might also exist over Twitter's attempt to discourage the creation of apps that are similar to the official titles and its tendency to buy out competition like Atebits' Tweetie or TweetDeck.