This app was mentioned in 4 comments, with an average of 0.75 upvotes
Using an Android phone as a torrent box makes a lot of sense, just from a power usage and noise aspect. If you can manage to solve the storage problem, you are free to go. Use VPN and I recommend aTorrent
I'm assuming he was talking about this: https://play.google.com/store/apps/details?id=com.mobilityflow.torrent&hl=en
I've never tried it, and am not 100% sure that's the one he was talking about, however.
Atorrent works for me.
https://play.google.com/store/apps/details?id=com.mobilityflow.torrent&hl=en