The decision to bar the HKmap.live app, which crowdsources the locations of both police and protesters, from its app store plunges Apple into the increasingly fraught political tension between China and the protesters that has also ensnared other U.S. and Hong Kong businesses.
Apple had only just last week approved the app after rejecting it earlier this month. The Chinese Communist Party’s official newspaper on Tuesday called the app "poisonous" and decried what it said was Apple’s complicity in helping the Hong Kong protesters.
Apple said in a statement on Wednesday it had begun an immediate investigation after "many concerned customers in Hong Kong" contacted the company about the app and Apple found it had endangered law enforcement and residents.
AP story at this link has much better graphic representation of the app.