Based solely on the provided article body, there is no information about Apple integrating Google SynthID to label AI photos in iOS 27. The article body is entirely about Streamline Feed, a digital business ecosystem founded in 2019 in Nairobi, Kenya. It describes Streamline Feed as a platform combining business discovery, media, customer engagement, analytics, and other tools, with a growing network of over 15,000 businesses and 50,000 users.