Where are these so called "settings???"

Silly me I didnt read the reviews before getting the free trial. Read that you could go to the settings and cancel before your payment, okay cool lets shoot for it. Finished the story I was on and looked for the settings, couldnt find them, went into the settings on my phone, iCloud, AppStore settings, the developer site, theres no information about where these "settings" to cancel are....

daedraug25 about Yarn - Chat & Text Stories, v1.6.0