Complete scam. They try to entice you with options like free coins and chapters for stuff like watching videos, rating stories, regular use etc. These options work fine for a while, and then suddenly stop working. By that time you are invested in some story and the only way to continue is to purchase coins, which is what they want. And it is not even worth the hassle. Micro chapters needing you to frequently spend coins, total lack of proofreading and quality control, this is a con job