Apple explica que ya no son necesarias pues iOS 6 provee soporte para los emoticones tipo Emoji para todos los usuarios. Aunque en Techcrunch comentan que el soporte para Emoji viene desde iOS 5.
Igualmente todavía quedan muchas, ya que si hacen una búsqueda en la tienda de aplicaciones encontrarán un listado largo de Emoji.
A continuación tienen la copia del email que reciben los desarrolladores de apps para iOS, explicando porque Apple quita su aplicación de la tienda,
Hello [redacted],
We are writing to let you know your app, [redacted], has been removed from the App Store because it is no longer needed to unlock Emoji.
Since iOS 6 now provides Emoji support to all users, your app is no longer in compliance with the App Store Review Guidelines
2.12 Apps that are not very useful, are simply web sites bundled as apps, or do not provide any lasting entertainment value may be rejected
If you have questions about the removal of your application, please contact App Review at appreview@apple.com. Please include the App ID and the name of your application in your email.
Thank you and best regards,
App Review