You’re looking at paying at least $6 per month for one business license, paid in full for a year upfront; $6.99 a month for home use; or $159.99 for an Office Home and Student 2021 license.

"rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files ...