While this may seem pretty expensive for the average Twitter user, Tapbots had to make the price this high. Why? In short, because Twitter screwed Tapbots with the latest version of their developer terms. Tapbots was given a pretty low amount of access “tokens” for Tweetbot for Mac. Access tokens allow Tweetbot to interact with the Twitter API. Because of this, every time Tweetbot gains a new user, a token is used up. This only allows Tweetbot for Mac to sustain a limited amount of users, hence making it hard for Tapbots to make a profit if the app was priced low. If you’d like to view Tapbot’s full explanation, check out their blog post.