Azure Storage Mover vs Cloudsfer

Azure Storage Mover moves files and folders from on-premises systems and cloud sources into Azure Storage. It can transfer to Azure Blob Storage or Azure Files from sources using SMB 2.x/3.x, NFS 3/4 or S3. Choose a one-time migration, recurring transfers, or a metadata-only run that creates folder structures and permissions without transferring file contents. Transfers can retain file structure, permissions, attributes and metadata. An Azure-hosted resource coordinates jobs, authentication and progress; agents scan and transfer data from on-premises systems or cloud virtual machines. For AWS S3-to-Azure moves, Azure Arc connectors provide source access and allow server-to-server copying without an agent. Transfers use HTTPS, and Private Link to storage accounts is optional. Storage Mover is free for on-premises-to-Azure and AWS-to-Azure scenarios, though standard storage, transaction and networking charges apply. Resources can be created in six listed regions, while data can be ingested into all Azure public regions. Microsoft reports no per-job file or directory limit and testing up to 500 million objects in on-premises scenarios.

Cloudsfer provides cloud data migration, backup and synchronization across cloud and on-premise systems. Its migration service supports more than 20 cloud storage providers, with listed systems including Dropbox, Box, OneDrive, SharePoint Online, Egnyte, Amazon S3, Azure Blob, FTP and WebDAV. Transfer features include delta migration, filters, detailed reports and an on-premise agent. Backup can run automatically on daily, weekly or monthly schedules, including to a local environment. Synchronization transfers cloud and on-premise data on a configured schedule and moves only changes. Cloudsfer says communications are encrypted and it does not store user data or passwords; its migration page says transfers use TLS and data is not stored on its servers. The Free Tier costs nothing for 1GB. Essential costs $100 a month for 100GB, with $1.20 per GB overage and one parallel job. Professional costs $320 a month for 400GB, while Enterprise costs $780 a month for 1TB; both list separate overage rates and parallel-job limits.