Direct electrical heating will always be less efficient because it’s 1 kWH of power = 1 kWH of heat. ACs are air-air heat pumps where in my country „heat pumps“ refer to water-air or water-soil heat pumps. Since they are literally pumping heat from one place to another, they are up to 5x more efficient than any infrared heater or electrical furnace
Ever heard of wix or squarespace? I think there is your reason these apps don’t exist anymore.