Earlier this month, Spotify complained to European competition authorities about Apple’s treatment of the music service. The complaint is part of a longer trail of grievances in the tech industry over Apple’s conduct.

In 2014, Apple removed Fitbit’s wearable fitness trackers from its retail stores after the company decided not to make its products work with Apple’s HealthKit feature that stores users’ personal health information on iPhones. Fitbit had encountered technical issues with Healthkit, which displayed fitness data that conflicted with data in Fitbit’s own app, a former employee said. While Apple was preparing to begin selling the Apple Watch in stores at the time, its move was seen inside Fitbit as retaliation since the company left a fitness tracker from Jawbone on its store shelves, the person said.