The score entry method used in Golf-Ace is very well done - it’s super fast to use, and incredibly intuitive. However, the program lacks much in the way of statistics, and I experienced some bugs and crashes during my testing.
The developer has an update that’s already been submitted to Apple (on July 6th) for approval. Based on the release notes for the update, many of the bugs I encountered will be addressed once the update is released.
Unfortunately, it’s not clear at this point when the update will be made available by Apple. Once it is, and assuming the update addresses the noted issues, Golf-Ace will become a strong competitor in this niche.