"it's all stored locally" is not a panacea for these alarming privacy-invading products!

what exactly is stored locally? what data is extracted from that local data and sent to the company's servers? is that local data being backed somewhere?

what additional risks are now being posed to people who share devices, whose devices might be accessed by others or compromised, or who might not realize these tools are running? what is the risk that the company might later change its decision on local storage?