Apple becomes more affordable
It is known that the Android platform is available for all developers, thus everyone can design their applications and services as well as create new gadgets based on it. But as to IOS, the situation is more complicated. Only some developers, obtaining Apple’s permission, are allowed to issue products for iPhone, iPad, and Apple Watch powered by this system.
However, the company has recently reconsidered its own strategy. It has made the non-commercial version of HomeKit protocol (a platform for automation of smart household devices) accessible to all. This option allows everyone interested to develop smart home devices but without the right for their selling and distributing. If you want to earn on your work, you will have to obtain Apple’s license as usual.
The company website also includes a huge guide with detailed description of the interaction between various sensors and HomeKit.