My local power company was offering "free nest" thermostats. In the fine print they gave them self the ability to change the temp.I tried a Google 'Nest 'stat. I didn't like that it would change my settings to "economize" for me, even after I told it not to. It did do wireless at no charge as Google seems to own the internet. Other 'stats may charge a monthly subscription fee for this service. I don't need wireless and went with a Honeywell programmable.