(only if eaten alone)
If there are recognizable chunks of apple
Brocho before eating this: Borei Pri Ha'eitz
Brocho after eating the proper shiur of this: Borei Nefashos
If it is completely smooth
Brocho before eating this: Shehakol Niyeh Bedvoro
Brocho after eating the proper shiur of this: Borei Nefashos
Source: Based on correspondence with The Orthodox Union