What is the relationship between iPhone and Apple Inc in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

SAN FRANCISCO, Sept 9 (Reuters) - Apple Inc unveiled the iPhone 6S and 6S plus on Wednesday, the latest iteration of its lucrative smartphone that offers 3D touch, a display technology that responds differently depending on how hard users press their screens.

Answer: developer