Using the app with my phone here: By tapping on the body of a post or reply you should see a group of icons appear along the bottom of said post; the second of these icons (a set of quotation marks) will open up a reply that includes the full text of the post contained within a [b]Quote[/b] function. From here you should be able to copy/edit the text as normal and either use it as part of a reply to that post or back out entirely using the [b]Cancel[/b] option in the top left corner of the screen to use the copied text elsewhere. If these options are not appearing to you in this fashion perhaps there is a newly updated feature on your phone causing some sort of conflict and you may need to root around in your phone settings to see if the issue can be addressed on your end. (΄◉◞౪◟◉｀)