Apple also recently removed Castro Podcasts from the App Store for similar reasons. “We think it might have been our support of the protests in the Discover tab,” Castro tweeted. “We were not given specifics.”

China is Apple’s third largest market after the US and Europe. To that end, it often obliges requests to censor apps and content deemed sensitive by the Chinese government including games like Plague, Inc. Foreign podcasts have been banned in China for years, but Apple Podcast recently opened up a window to foreign content in the nation. However, the latest actions suggest that window might be closing fast.

“The very small amount of warning we were given between there being a problem, and our app being completely removed from the Chinese app store was quite alarming,” a Pocket Casts spokersperson told TechCrunch.