OmniOutliner 3 for iPhone & iPad
OmniOutliner for iPhone should not need any introduction. It is a wonderful app for people who enjoy using their iPad or iPhone for writing. OmniOutliner 3 allows you to do even more on your devices. It lets you handle text via drag & drop. It has a simple Inspector for accessing documents and styling options.
The app comes with a dark mode too. It now lets you create and save keyword filters. Excel & Powerpoint export functionality is built-in.