A recent Senate antitrust hearing focused on smartphone app stores and the fees Apple and Google charge developers: 15% for small developers, 30% for larger ones. Companies that create apps, like Match and Spotify, said the fees were too high for what Apple provides and that the terms can change without warning. Developers also pointed out that sometimes Apple might make apps that compete with external apps, as is the case with Spotify and Tile. “Marketplace Tech” host Molly Wood discusses the whole ecosystem with Julie Ask, a principal analyst covering technology for Forrester Research.