Probably anyone willing to spend some time to save some money. They could also sell the tool for less than any of the books and make money while saving their customers the full price of the book. https://octagon-simon.github.io/projects/unscrambler/ Here's a word unscrambler that was made with a tutorial on what they did, so from there someone else only needs to consume the jumbled words, unscramble each one, and if there are multiple options for a word it can be in a select list or something so the user can choose the correct word. It's a novel trick, but isn't going to help for long.