It has been mentioned in several threads and public roundtables. Last time here . Basically, (as I understand it) the existing code had to be scrapped and the entire app re-built with a mobile developer. Apple changed some rules about how apps could be built and distributed on the App store, and the existing app had used those deprecated methods as their foundation. I.e. it could not be updated, only re-written. Yes, it has been a long time, and it may be a long time yet. We have no due date and are unlikely to get one—Roll20 does not generally disclose timelines. It would be nice to have an app, but lots of people want a new fog of War system, or Modules, or Compendium improvements, etc. Presumably Roll20 has a roadmap based on marketing needs and development resources.