The removal of the app was “not in response to a government request but because the app violated the Play Store’s policies,” a Google spokesperson said.
Apple said it had received complaints about the app from several people in Hong Kong, saying it had been used in ways that “endanger law enforcement and residents in Hong Kong.”
Apple’s decision came soon after Chinese state media criticized it for allowing HKmap to be downloaded.
The American league is facing a ferocious backlash in China after Houston Rockets executive Daryl Morey tweeted support for the protests. That prompted all of the NBA’s official Chinese partners to suspend business ties with the league.
Like many other US internet platforms, Google’s most popular products — search, YouTube, Gmail — have been banned in mainland China for years, blacked out by a vast government censorship apparatus known as the Great Firewall.
CNN’s Isaac Yee and Laura He contributed to this report.