BLOOMBERG - Apr 20 - Google will send a top policy executive to testify at Wednesday's Senate app store antitrust hearing, while legal executives from Spotify, Tile and Match Group will serve as witnesses. Spotify, Tile and Match have all been embroiled in antitrust fights with Apple recently, with Spotify and Match filing complaints about Apple's App Store rules and fees. The Senate subcommittee is investigating Apple and Google over competition issues and concerns from app developers. Apple's Andeer previously testified on several matters for Apple before the House of Representatives and other U.S. lawmakers. Google often argues that it differs from Apple since Android device owners are free to download alternative app stores. But Google does require device manufacturers to install its app store and other mobile services, giving its properties a competitive advantage. That arrangement was the centerpiece of a European Union antitrust case against Google. The company disputed the EU charges.