HiBeacons
An iBeacons example app for iOS 10, with Apple Watch (watchOS 3.0)
...The apps implement a basic interface for starting all the operations from the iPhone and the Apple Watch, but the state of the various beacon operation can only be seen in the phone. (The watch app acts as a simple* remote). The source is easy to understand and modify. The structure of the app is based on a simple hierarchy of operation classes. There are three NATOperation subclasses, each responsible of a specific operation. NATMonitoringOperation, NATAdvertisingOperation, and NATRangingOperation. The app is easy to use with any given proximity UUID and identifier, which can be changed in NATOperation.