Allway Sync software (version 15.3.1) is a file synchronization tool that allows users to synchronize files and folders across multiple devices and platforms. It supports a wide range of file sources, including cloud storage services, FTP/SFTP servers, and external hard drives. The software also includes advanced features such as real-time synchronization, file versioning, and conflict resolution. Additionally, it offers a user-friendly interface and customizable synchronization options to meet specific needs.