COPPA:
The Children's Online Privacy Protection Act (COPPA) is a US federal law enforced by the Federal Trade Commission (FTC) that regulates the online collection and use of personal information from children under the age of 13. It imposes certain requirements on online operators who direct their websites, apps, or online services to children under the age of 13 and requires them to obtain verifiable consent from the children's parents before collecting, using, or disclosing children's information (subject to certain limited exceptions). To learn more about COPPA, you may consult the FTC’s COPPA FAQs page.
GDPR-K:
The General Data Protection Regulation (GDPR) is a UK and EU regulation on data protection and privacy. GDPR-K refers to the special protections within the GDPR for children’s data. Under GDPR-K, when online operators are relying on consent as the basis for processing a child’s data, they must obtain this consent from a parent and make reasonable efforts to verify that parent. The GDPR sets the age of consent at 16, but individual member states may lower this as far as 13.