The iOS App lacks many features that can only be accessed via the web interface, such as: viewing/restoring archived items, deleting attachments, deleting/editing check-lists, editing comments. However, using the web interface from an iPhone/iPad is almost impossible, as scrolling with the touchscreen unintentionally moves the various items from their positions (unless you have a physical keyboard for the tablet). This circumstance, taking into account that the use of mobile devices is now increasingly widespread, unlike PCs, whose use tends to be relegated to more specific tasks (complex calculations, video editing, etc.), ends up severely limiting the actual usability of ClickUp, which is why it would be advisable to have the full availability of the functions available via the web interface also on the App or, at least, those mentioned.