Kindle app on iOS received update 5.9, which added a feature called “Send to Kindle.” This allows users to save content from Safari directly to their Kindle library for later reading. Documents can be saved, but also web pages that are converted to Kindle format. This allows you to customize the text, font style, page color, and read the content on any Kindle app or device.
The update also supports "ComiXology's Guided View." Amazon says it's a breathtaking cinematic experience that will immerse you in. This feature will be especially suitable for comics.
Source: 9to5Mac