Google Cloud is a suite of cloud-based services just like AWS from Amazon and Azure from Microsoft. AWS dominates the market with Azure but Google's not far behind. Google Cloud Platform or GCP is the third largest cloud computing platform in the world, with a share of 9% closely followed by Alibaba Cloud.
Amazon undoubtedly leads the market with a share of 33% but GCP is showing tremendous spike with the growth rate of whooping 83% in 2019. GCP leads AWS on the cost front, though. Google has a lesser number of services to offer but maintains its position as one of the most cost-effective cloud platform.