Brief intro but lacking features and info
The app has some good info pages, but they are all brief. Many aspects of the language are missing and are not covered here. Like asynchronous programming etc. When starting the app, a quick transition screen is shown displaying the app is for the Go language… This gives the feeling that the app is just a cheap copy of another app and no real effort was put into it. There is a “help” page where you can search for questions, but all answers are too generic and looks like it simple search your question on google instead. In summary, it should definitely be free, and the content is widely accessible from other sources and the app has just been copied from somewhere else. Do not pay for it.