That one's a tough call, since, from their FAQ they state:
Definitely a grey area {ponder}
First, nope, there's nothing illegal about our tools; you won't be going to jail for trying to save your wrists
. As far as the TOS of the games they're made for, well, that's a subject of disagreement amongst players. What is typically considered against the TOS's is "unattended" gameplay. Our tools are not intended for such activity and are certainly not hacks that interfere with the games. As such, we feel good about them being ethical and within the TOS.

Comment