Torrentor! is described as 'Torrentor is a torrent client for the haiku operating system' and is an app in the File Sharing category. There are six alternatives to Torrentor! for a variety of platforms, including Windows, Linux, PortableApps.com, Mac and Haiku. The best alternative is qBittorrent, which is both free and Open Source. Other great apps like Torrentor! are Transmission (Free, Open Source), Free Download Manager (Free), Distribyted (Free, Open Source) and Free Torrent Download (Free).
The qBittorrent project aims to provide a Free Software alternative to µTorrent. Additionally, qBittorrent runs and provides the same features on all major platforms (Linux, Mac OS X, Windows, OS/2, FreeBSD).
Transmission has the features you expect in a BitTorrent client: encryption, a web-based interface, peer exchange, UPnP and NAT-PMP port forwarding, web seed support, watch directories, tracker editing, global and per-torrent speed limits, and more.
Distribyted tries to make easier integrations with other applications among torrent files, presenting them as a standard filesystem. We aim to use some compressed file characteristics to avoid download it entirely, just the parts that we'll need.