http://itunes.apple.com/us/app/mupdf/id482941798?mt=8&uo=4 offers mupdf-1.4 as the latest released version. I wanted to update mupdf, but version 1.5 isn’t available at iTunes. Many thanks for your help, Pablo
1.5 has been uploaded to Apple, and is waiting for review.
1.5 has been approved by Apple, and is now live.