That isn't 20 bucks. Seriously, this is crazy pricing for an app.
replyAny would you not want to support someone who implanted this? You probably squander more than $20 on meaningless nonsense frequently, why not support him a bit?
replyBecause at $20 it’s cost prohibitive to a lot of non-professionals who may want to go out exploring and potentially find new discoveries.
replyThe app is also a 7 years old