I don't think you'll find a standard for cataloging iOS apps specifically (as opposed to software generally), but if you post this question to the AUTOCAT listserv, you might get responses from people who have cataloged iOS apps before and may have developed local practices for their catalogs.
From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Matt Amory
Sent: Wednesday, July 03, 2013 12:09 PM
To: [log in to unmask]
Subject: [CODE4LIB] Cataloging Apps
Are there any standards for cataloging iOS apps in public library OPACs?
Are there radical differences between cataloging apps and other non-MARC resources?
Forgive the broadness of the question folks...
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