Google has no warnings published on PrivacySpy. PrivacySpy publishes warnings when it learns a service has announced a data breach or is found misusing user data. If you believe a warning should be published for Google, submit one here.
"The activity information we collect may include: ..."
"The information we collect includes: ..."
"If you’re using an Android device with Google apps, your device periodically contacts Google servers to provide information about your device and connection to our services. This information includes things like your device type, carrier name, crash reports, and which apps you've installed."