This might be the first device I've purchased that has betrayed me in a way I didn't expect. I don't use a Kinsa thermometer anymore having discovered the hard

This might be the first device I've purchased that has betrayed me in a way I didn't expect. I don't use a Kinsa thermometer anymore having discovered the hardware was crap anyway and moved on to a Withings one, but I did not realise, despite probably agreeing to it in the T&Cs, that they were selling my data. I naively had assumed me paying for the thermometer was the business model. I must say it doesn't feel good.