What are the best apps for BookTok and romantasy readers?

The genre's biggest series share a few traits that shape which apps help: books of 500 pages or more, casts that grow with every installment, invented words and places, and a year or more between releases. The usual reading-app features, such as a store and a progress bar, do not address any of those.

• Getting back in after a gap without reading a summary that spoils the next book.
• Keeping names straight when a series adds new courts, houses or squads each book.
• Finding the next read that matches the mood, heat level and content you want.
• Talking about it without spoilers from faster readers.
• Affording the habit when a series runs to five or more books.

Recap videos and fan wikis are written for people who have finished the series, so they often mention later events. The safer order is: first check whether a tool can recap only up to where you stopped, then reread the last chapter you finished, then skim the series' character list at the front or back of the book if it has one.

If you read the earlier books on Kindle in the US, Kindle's Recaps cover books you have already read in a series, and Story So Far covers the one you are in. If you read in print, from the library, or across formats, Magic Bookmark does the same job for its supported titles: photograph the last page you read and it builds the recap and cast list from only what came before. We do not publish plot summaries of any book on this site.

A cast list that grows only as characters appear is the most useful aid for a sprawling series, because a full character list from a wiki will name people you have not met yet. Magic Bookmark's cast list is built only from what you have read; Kindle's X-Ray lists characters in supported Kindle books. If you prefer paper, keep an index card in the book and add each new name with one line about who they are.

• Library first. Place Libby holds for the books you will want in three months, and use Hoopla for whatever is instantly available now. Our library apps page explains the difference.
• One subscription at a time. Kindle+ at $11.99 a month suits a month of heavy reading; cancel when the series runs out.
• Buy the books you reread. Spend money on the volumes you will open again and borrow the rest.
• Do not pay twice for a recap. If the book is a Kindle ebook, try Story So Far first, since it comes with the book.

Romantasy is a social genre, and spoilers travel fast. Fable's clubs split discussion into chapter rooms, The StoryGraph locks readalong comments until each reader reaches that point, and Thus Far stops its feed at your bookmark. For a club where members read at different speeds, see the best reading apps for book clubs.

Many readers alternate formats in a long series: audio on the commute, print at home. That only works if your place moves with you. Kindle's Read & Listen switches between a Kindle ebook and its Audible narration at the same spot, which suits readers who own both. Libby and Hoopla lend many popular audiobooks free.

For a series you read partly in print and partly on audio from different sources, Magic Bookmark finds your place from a photo of the page or the last phrase you heard, so a recap stops in the right spot whichever format you were in. See the best audiobook apps for the listening side.

Romantasy titles are often shelved near YA but many contain adult content, and the apps' own age ratings vary: Fable is rated 18+ on the US App Store, The StoryGraph and Goodreads 13+, and Magic Bookmark 13+ on the US App Store. If a teenager in your house uses these apps, check each one's rating and privacy label.

Privacy labels differ too. Magic Bookmark's lists identifiers used to track you; Libby's lists only diagnostics linked to you. Our feature matrix puts ratings and age ratings side by side.