I have a very simple question. I have been watching some tutorials online regarding Android Java Programming and Firebase. A particular Youtuber does tutorials that are open to everyone and he shows his source code, however in his description he has a URL where he sells the source code to any of his apps on Fiverr. If I use his code from his Youtube tutorial videos, am I free to use it without paying for his Fiverr source code. (Also the only code I have used from this person relates to simple Firebase queries and other simplistic code that other Youtubers have done tutorials on).
Your opinion would be greatly appreciated!