What are Kindle's Ask this Book and Story So Far?

01Fact sheet

02What is Story So Far?

Story So Far is part of Kindle Recaps. Amazon says it gives "spoiler-free refreshers up to where you've read" for "thousands of popular fiction titles", covering storylines and character arcs so you can pick a book up again "without backtracking through chapters".

To check whether a book has it, press and hold the book in your Kindle Library and look for a "Read recap" button. While reading, you can open it from the three-dot menu in the book. Amazon describes the result as "a catch-up tailored to your current position in the story".

03What is Ask this Book?

Amazon describes Ask this Book as "your expert reading assistant", answering questions about "plot details, character relationships, and thematic elements". You highlight a passage, or open it from the in-book menu, then tap a suggested question or type your own, and you can ask follow-ups. Step by step: How to use Kindle Ask this Book.

Two details matter for spoilers:

• "All responses provide immediate, contextual information up to your current reading position."
• "You can also choose to ask questions about the entire book." If you do, later events are fair game.

04Where does Ask this Book work?

The sources differ slightly. Amazon's page, updated 2 July 2026, says Ask this Book "is currently available on the Kindle iOS app in the U.S. and will expand to Kindle devices and the Android OS app later this year." Good e-Reader reported the US launch on the Kindle iOS app on 14 December 2025. The Authors Guild's statement says the feature has been available "since December 11, 2025, on certain Kindle devices and the Kinde iOS app" (their spelling). We have not seen an Amazon announcement of the Android app version. The October 2026 journal note tracks this.

05What are Kindle Recaps?

Recaps came first, announced on 2 April 2025. They refresh you on books you have already read in a series, "much like the 'Previously on...' segment before a show". You open them with "View Recaps" on a series page in your Kindle Library or on Amazon.com, from the series menu on a Kindle device, or by pressing and holding the series in the Kindle iOS app. Amazon's July 2026 update added Recaps in a web browser; see our note.

06How is X-Ray different?

X-Ray is older and is not a recap. The Kindle app's listing describes it as a way to look up "characters you can't remember". Amazon's author help says entries are built from "publicly available sources, machine learning, manual review, and excerpts" from the book, and that authors can edit them or hide terms "that may provide spoilers". So X-Ray can help you remember who someone is, but it is not designed around your page the way Story So Far is. The three are compared in Story So Far vs Ask this Book vs X-Ray.

07How do these features work underneath?

Amazon does not publish a technical description. The Authors Guild reported that Amazon told it "the feature only uses content from the book as a prompt which is not retained or used to train the underlying AI model", that it uses a "standalone" instance of an AI model, and that responses are "based solely on the text of the book purchased by the user". The Guild added that this "may suggest" retrieval augmented generation, while saying it had no confirmation. Our explainer on page-locked recaps shows what that kind of design means for spoilers.

08What do they cost?

Amazon does not describe a separate charge. The features come with supported Kindle ebooks, whether you bought them or borrowed them. The Kindle app itself is free.

09What does the Kindle app's privacy label say?

The Kindle app's App Store label lists no data used to track you. It lists data linked to you in these categories: purchases, location, contact info, user content, search history, identifiers, usage data, diagnostics and other data. See all the apps side by side in Reading app privacy labels.

10What are the limits?

• US only, on Amazon's description.
• Kindle ebooks only. No print books and no audiobooks.
• Supported titles only. "Thousands" of best-selling English-language ebooks, not every Kindle book.
• Ask this Book's platforms are still expanding, with Android announced but not yet described as available.
• Whole-book mode can spoil. It is a choice you make, but it exists.
• Author objections. The Authors Guild says Ask this Book was added without permission or payment and with no opt-out. Read both sides in Are AI reading companions fair to authors?

11Kindle's features or a bring-your-own-book companion?

The fair contrast: Kindle's tools only work inside Kindle ebooks bought or borrowed through Amazon, and they cost nothing extra. Magic Bookmark works with a print copy, an audiobook or any ebook, but only for its supported titles, only on iPhone, and it charges per book after the free start. If your book is a supported Kindle ebook and you are in the US, try Kindle's features first. The full comparison adds Fable, Thus Far and general chatbots. For how Kindle Recaps sit next to reading trackers, see Best Book Tracker Apps.

Other store tools: Google Play Books now offers a similar recap and question feature, Book insights, and Spotify offers audio Recaps for its audiobooks. See Google Play Books Book insights and Spotify audiobook Recaps, or the comparison table.