today made its S Pen SDK available to app developers. The company announced the SDK earlier this year. Developers will be able to use the tools in the SDK to create custom apps or actions that center on the Galaxy Note9's S Pen stylus. Critically, Samsung added Bluetooth to the S Pen for the Note9, which opens up a wide range of possibilities for developers. For example, the S Pen button can be set to respond to a single or double press to interact with an app's features. Further, the S Pen Remote allows users to control their Note9 from afar. Adding remote triggering to camera apps and similar can improve the overall experience of using apps with the Note9 and S Pen. The SDK is free for developers to download and use.