While the free version handles basic downloading, the tier adds several advanced utilities:
Removes all distracting interface ads that are otherwise present in the basic version.
Features a built-in antivirus scanner that automatically checks downloads for malware and viruses.
Grants direct access to one-on-one customer assistance for technical or billing issues. The "Portable" Advantage Introducing µTorrent Pro, now with Streaming! - Forums
Allows you to play or preview files (including HD video) while they are still downloading.
