Oh gosh…well I am actually working on a character creator for Pathfinder (D&D like game). The end result will be to generate a PDF of the completed character. This will be many pages of static content generated from values captured and computed by my app. The best way to handle that might be to use one of the libraries that converts HTML to PDF. At least that would allow me to create a decent looking and very complex set of sheets.
At a minimum it needs to support IOS and Android and eventually desktop and/or web. At the moment I’m planning to create a service on AWS that will generate and cache the PDF returning a link where the user will be able to download it. Long term this might be the best bet anyway.