From the article: " That’s because, while Google expected apps to use Google’s own billing system for purchasing digital goods, it rarely actually enforced the

From the article: " That’s because, while Google expected apps to use Google’s own billing system for purchasing digital goods, it rarely actually enforced the expectation." "But Google is currently cracking down on app developers skirting around its rules. Starting June 1st, Google said it would remove apps that didn’t comply with its billing system rules. "