Tofu was designed to help you read text on your Mac.
Text is usually very wide on the screen, making it hard to jump from the end of one line to the beginning of the next. That’s why newspapers have narrow columns: it makes them faster to read. Also, when you have lots of lines of text, close together and all looking more or less the same, it’s easy to get lost when they scroll past your eyes vertically.
Other apps try to address this by showing text in two columns, like facing pages of a book. But why limit yourself to two? And isn’t it tedious having to flip through a text page by page?
Tofu shows your text in a horizontal array of columns. Lines are nice and short, it shows as many columns as will fit, and you can move freely and fluidly through your document.