If you covered this chapter completely and have made it this far, then you can give yourself a pat on the back. Having an understanding of Bluetooth Low Energy on two major mobile platforms is no small feat.
As your creative juices start flowing, you will have realized the endless possibilities that Bluetooth Low Energy can generate together when combined with a backend. For example, reading data from a heart rate monitor (or any other BLE Peripheral) is one thing, but making it available to be accessed remotely, already opens doors to many interesting IoT applications of Bluetooth Low Energy, which are not just limited to healthcare.
There is so much more to come and, in the coming chapters we will go in even deeper and explore how we can make use of Bluetooth Low Energy in areas other than healthcare, such as indoor positioning/navigation, Beacon based local adverts...