Smart home device maker Futurehome is forcing its customers’ hands by suddenly requiring a subscription for basic functionality of its products. Launched in 2016, Futurehome’s Smarthub is marketed as a central hub for controlling Internet-connected devices in smart homes. For years, the Norwegian company sold its products, which also include smart thermostats, smart lighting, and smart fire and carbon monoxide alarms, for a one-time fee that included access to its companion app and cloud platfor...