FolderSync vs Resilio Sync

FolderSync moves files between folders on a device and cloud services or file servers, and it can also sync folders stored on the same device. One-way sync mirrors a source to a destination; two-way sync is also supported. It can transfer files between two remote locations through an Android device or desktop computer, which temporarily holds the files. Connections include Google Drive, Dropbox, OneDrive, Box and Nextcloud, along with FTP, SFTP, SMB, S3-compatible storage and WebDAV. Its V2 engine adds encryption, pre-sync change analysis, parallel transfers and Cron-based scheduling. FolderSync also supports Tasker integration and configurable events such as schedules and syncs. Encryption protects file names and contents before upload, but works only with one-way sync; a lost encryption password cannot be recovered. FolderSync says account, folder-pair and sync-log data stays on the device, while files go directly to the configured service or server. A free plan is available. Android requires version 8.0 or newer; desktop support covers Windows 10 or newer, macOS 10.15 or newer, and qualifying 64-bit x86 Linux systems.

Resilio Sync is a personal file synchronization and sharing product that uses peer-to-peer technology. It can send files to multiple recipients without exposing an entire folder or establishing a permanent sync connection. Advanced Folders let users assign ownership, change read and write permissions, and revoke access. Selective Sync creates searchable placeholders so users can download chosen files, and bandwidth limits can be set for Sync activity. Resilio describes the product as cloudless: files remain on users’ devices, while relays, if used, carry encrypted files without storing them. The maker says Sync uses AES-128 encryption in transit and X.509 certificates for mutual authentication. The listed platforms are Windows, macOS, Linux, iOS, Android, and NAS. Sync 3.0 is for personal, non-commercial use and requires a license to activate; commercial users are directed to Sync v2 or Resilio business solutions. The free plan has no expiration date.