Smart updates
Reikai intelligently works to reduce the number of series in a global update to reduce the load on sources. To be updated, a series has to meet the following conditions:
- Series Progress: The series must have been started, with at least one chapter read.
- Ongoing Status: The series is not marked Completed by the source, there's an expectation of more chapters in the future.
- Chapter Completion: The series has no unread chapters, you've read all the chapters you already have,
- Time Elapsed: There's been enough time since the last update for the series that the app predicts a new chapter is available.
Each condition is its own option in Smart update, in . Manga and light novels have separate copies, under Global update · Manga and Global update · Novels, and every condition starts on.
The built-in adult gallery sources, including the one that also wraps its extension (see built-in sources), are always left out of a global update, whichever conditions you turn off, because a gallery gains pages in place rather than gaining chapters. Only the galleries covered in adult sources are re-checked, by their own Gallery update checker; the other left-out galleries are not checked for new pages at all. Any other adult extension updates like every other source.
You can see how many days the app expects to wait for the next chapter of a series by looking at the hourglass. After that many days, the app will allow that series to check for updates.
Light novels get all four conditions
A novel's next chapter is predicted from its own chapter history, the same way as for manga, and it has the hourglass on its details page too. For either kind, a series with no chapters yet does not count as not started, so it keeps being checked until it has some.