Free novels usually referred to novel websites or applications that provided limited reading. The readers could read novels online without paying any fees. However, free novels were not completely free. Some free novel websites may charge a small amount of fees or advertising fees, which usually increase automatically after the reader has been a reader for a period of time. In addition, free novels may also contain some paid content such as the author's recommendations, reviews, and extras. These contents may require readers to pay an additional fee to read. Therefore, although free novels could allow readers to read novels, they had to choose their websites and applications carefully to avoid unnecessary fees or inappropriate content.