Amazon Simple Storage Service (Amazon S3), provides developers and IT teams with secure, durable, highly-scalable object storage. Amazon S3 is easy to use, with a simple web services interface to store and retrieve any amount of data from anywhere on the web. With Amazon S3, you pay only for the storage you actually use. There is no minimum fee and no setup cost.
SFTP To Go is a fully managed, scalable, durable and highly available file storage service that allows you to securly transfer, share and integrate data with 3rd parties or as an intermediate file storage. SFTP To Go allows you to access your data using several secure protocols such as SFTP, AWS S3 and FTPS.