Postman now allows developers to create APIs from directly within the app. Prior to the latest release, 7.1, Postman was an API development tool that allowed certain features to be created within the app, but others outside the app. Now, the entire lifecycle of an API is managed within the app.
Samsung isn't making it easy for developers. The company may have released a handful of SDKs for its latest devices, but Samsung's non-committal approach to its Tizen platform is probably going to cost it developer support.