There are currently two programs, Honorbuddy(HB) and Gatherbuddy(GB). If you buy lifetime, you get access to both.
Gatherbuddy - This was originally the best for farming. It can use flying mounts to farm with ease. The program itself is not as good as honorbuddy, but the flying was the main thing.
Honorbuddy - This is the other program. This is used for everything else; levelling, questing etc. This cannot fly. This program is much better than gatherbuddy.
You can buy a key for Gatherbuddy 2 - This is part of the HONORBUDDY program, even though it has the name gatherbuddy. This makes it so that honorbuddy can now fly! So you can have all the better features of honorbuddy, but now with flying mounts. If you want to use this, you must buy a "Premium Plugin Key". You can put this key into honorbuddy and you can then use gatherbuddy 2.
The best thing to do is buy a lifetime key. With this you can use everything, honorbuddy, gatherbuddy, gatherbuddy 2, archaeologybuddy etc.
Honorbuddy: Best bot. NO flying.
Gatherbuddy: Not as good, but CAN fly.
Honorbuddy + Paid Plugin Key = Gatherbuddy2.
Lifetime: Access to everything (This is the best option)
P.S I've had lifetime since I started so I might have some information slightly wrong on the plugins thing, but this is how I think it is atleast.
