Book Seriesor - DoCu^2 app for iPhone and iPad

It is a tool for finding the continuation of Kindle.

From the Kindle purchase notification mail on IMAP mail server, you can retrieve the title of the book. You can group books containing the same title string as a series. You can call the Amazon search page for the next book from the maximum number of turns in the series.

You can register books by manually entering from screen or importing purchase notification mail.
You can group registered books as "series" with matching title names.
Execute [Update Series Info] on the upper right menu of the [Series] tab.
You can call the detail screen from the (i) button.
You can search the continuation of the series with the [Check UpToDate] button from the series detail screen.
You can retrieve mail only new mails from the last capturing will be imported.