Apps such as ‘Smart Sheriff’ have been downloaded over 480,000 times in South Korea. Apps can look at every phrase the smartphone user searches for, every message that they send or receive, and can track the physical location of the owner. South Koreas Korea Communications Commission are insisting that Smart Sheriff (or one of the other apps with similar features to snoop on youngsters activities) are installed on any new smartphone used by someone aged 18 years old or less. The apps can control access to pornographic or adult websites, as well as block access to gambling apps.”]
Source: https://grahamcluley.com/spyware-south-korea-kids-smartphones/