In its "Worldwide Internet of Things Spending Guide," research firm IDC predicted a double-digit growth rate in 2021, with a compound annual growth rate of 11.3% from 2020 to 2024. IDC cited healthcare, insurance, and education as leaders in IoT spending. Those IoT connections span across the globe and throughout industries, permeating individual homes, offices, and vehicles, with the most prominent applications of IoT technologies falling into the given categories.