Apple has moved some of its iCloud services onto the Google Cloud, marking one of the most high-profile wins for Alphabet's rival to Amazon Web Services since it came under new leadership last fall.
Google has been a distant third in its race with Amazon and Microsoft's Azure as the trio vie for market share in cloud computing, but it has made strides since the appointment of industry veteran Diane Greene as head of that business in November.
Google also scored a victory with Spotify last month, when the music streaming service announced it would shift away from Amazon Web Services and move most of its services onto the Google Cloud platform.
Apple's move to Google comes as part of a broader diversification for its wide range of internet services, which include iCloud backups such as photo storage, music streaming and video downloads. Apple already uses cloud services from Amazon and Microsoft, as well as its own data centers, according to people familiar with the matter.