IoT Mobile apps: The starting point for Internet of Things applications are the things themselves. These edge devices typically have no screen (although that’s not always the case), a low-power processor, some sort of embedded operating system and a way of communicating (usually wirelessly) using one or more communication protocols.The things may connect directly to the Internet, to neighboring things or to an Internet gateway device – typically a plastic box with blinking lights.The next tier of the system, an ingestion tier, is software and infrastructure that runs in a corporate data center or in the cloud and receives and organizes the streams of data coming from the things. Software running in the ingestion tier is usually also responsible for managing things and updating their firmware when necessary.