The editor font defaults to Menlo which is a fixed width font. Often the issue is that tables are too wide for iPhone screen so the lines wrap causing the tables to become difficult to edit. Could you provide a screenshot?
(You can customise the font by setting editor-font in your init.org, a special beorg file which allows you to customise all sorts of things. For an introduction to the init.org see https://beorg.app/learning/excluding-tasks-from-specific-files-for-the-agenda-and-todo-lists/)
Simon Smailus
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