They will hopefully have the answers you seek, as they are the developers of the Gospel Library app. I have the app on my iPhone, iPod and iPad (Sadly, I do not personally own a MacBook.) If this is not the case, we would invite you to contact, which is the official technology site of the Church. It is my understanding that the Gospel Library app works on all Apple products it is available from the app store. Our numbers are few, and we are working diligently at getting caught up! The Response Team is made up of Church Service Missionaries and volunteers. We sincerely apologize for not responding to you sooner. The LDS Church responded on at 9:53 PM as follows:
