I initially intended to develop an app for iPhone, requiring SMS capabilities, but this would exclude iPad owners using iMessage. As MFMessageComposeViewController calls the Messages App, supporting iPad should be possible. I have recently noticed that "SMS" has disappeared from the required device capabilities dropdown, but "Messages App" has appeared. As the iPad supports the Messages App, then specifying this should allow iPad users to install the app, but if I try to install on an iPad I receive the error:
“Xxxxxxx” requires the “sms” capability which is not supported by Yyyyyy's iPad
I do not have "SMS" selected as a required device capability. If I deselect "Messages App", the message disappears and the app installs and runs on iPad. The documentation for required device capabilities does not mention "Messages App".
The app depends on messaging capability being available, but I am uncertain as to how to specify this as the documentation on specifying "SMS" and "Messages App" as required device capabilities isn't clear, and the behaviour of Xcode is not as I would expect. The app runs on iPhone with "Messages App" selected.