No tool is perfect, and Allway Sync Portable has its share of friction points.
The proprietary database file ( ._sync_....db ) makes subsequent syncs incredibly fast, as it caches file hashes. Allway Sync Portable
Allway Sync Portable (formally known as Allway Sync 'n' Go ) is a standalone version of the file synchronization software designed to run directly from a USB flash drive or external hard drive. Allway Sync Key Features Zero Installation: No tool is perfect, and Allway Sync Portable