Square Enix has announced a Final Fantasy XIV spinoff for iOS devices:

[PRESS RELEASE]FINAL FANTASY XIV: LIBRA EORZEA
                        AVAILABLE NOW ON iOSThe Official Companion App for FINAL FANTASY XIV: A Realm
RebornLOS ANGELES (Sept. 10, 2013) – Square Enix Inc.,  the publisher of SQUARE
ENIX® interactive entertainment products in the Americas, announced today that
FINAL  FANTASY XIV®: LIBRA EORZEA™, the official smart phone companion app for
FINAL FANTASY® XIV: A Realm Reborn™, is now available as a free download through
the iTunes Store.
                                The new application features a comprehensive game database that can be accessed
offline, as well as a character profile viewer for reviewing gear and attributes
on the go. Square Enix plans to offer additional features in the future, as well
as an Android OS version, which is currently in development. Game DatabaseFINAL
FANTASY XIV: LIBRA EORZEA  contains an encyclopaedic catalog of in-game
information, including items, quests, non-playable characters (NPCs),
achievements, and more. With a host of updates in the works, the database will
serve as an ever-useful resource for the adventurers of FINAL FANTASY XIV: A
Realm Reborn.Character Profiles
                                Players with an active FINAL FANTASY XIV: A Realm Reborn  account can log in
with their Square Enix account credentials to review their character information
such as attributes and gear. They can also browse the profiles of other
characters in their Free Company, Linkshell, or use the search function to view
details on other players and Free Companies. Moreover, players can even learn
where fellow adventurers acquired their gear.