How do I delete my account?
In Settings, under Sync across devices, tap Delete account. The account deletion page explains the rest.
My anime or manga is not found.
Try the Japanese or romanised title, set the search language to Any language, or pick the kind (Anime, Manga…) instead of All. Neither TVmaze nor Wikidata knows every title; you can always add one by hand.
Why do films, manga and novels have no picture?
Their data comes from Wikidata, which has almost no free pictures of them: posters and covers belong to their publishers. Anime series get their poster from TVmaze.
How does Next episode know the next one?
For anime series found on TVmaze the app loads the real episode list when you open the series, so Next episode goes from the last episode of a season to the first of the next. For titles added by hand it simply counts on.
Do I need an account?
No. Without one your library stays in this browser. Download it as a CSV in Settings now and then, or sign in to keep it on all your devices.
A title or a number is wrong.
Edit the title in your library; your copy is yours and is not sent back to TVmaze or Wikidata.