Kindle App for iOS New AI Features: Ask This Book, Story So Far, and Recaps Explained
Amazon has rolled out three AI reading tools to the Kindle app for iOS in the US, giving iPhone users access to features that are not yet available on most Kindle e-readers. The timing matters: anyone with a Kindle purchased before 2024 is locked out of two of the three tools on their device, and the iOS app is now their only path to them, according to Engadget.
The tools are Ask this Book, Story So Far, and Recaps. Ask this Book is an in-book chatbot. Story So Far generates a summary of the current book tailored to where the reader has stopped. Recaps serves as a series refresher before picking up a new installment. All three are live for US iPhone users now. None are available on Android yet, and the two contextual tools are restricted to Kindle hardware released in 2024 or later.
Amazon holds an estimated three-quarters of the e-reader market, Engadget reports. That share makes it notable when the company's newest reading tools land first on a competitor's platform rather than on the devices it sells.
Which Kindle app for iOS new AI features are live now?
Ask this Book is an in-book chatbot accessible from the book menu or by highlighting a passage of text. Per Amazon's announcement, it answers questions about plot details, character relationships, and thematic elements while avoiding spoilers by limiting responses to content the reader has already passed. Someone on chapter 8 cannot surface what happens in chapter 20. Amazon spokesperson Ale Iraheta told Publishers Lunch that responses are non-shareable and non-copyable, and that the tool is only available to readers who have purchased or rented the title, as reported by The Verge. Iraheta also confirmed there is no option for authors or publishers to remove their titles from the feature.
Recaps works like a series primer. Open the Kindle library, navigate to a series, and if a recap is available, an option appears to refresh on storylines and character arcs before starting the next book. Amazon describes it as similar to a "Previously on.." segment before a TV show. Recaps first debuted on Kindle e-readers in April 2025 before arriving on the iOS app, and Amazon says the catalog has grown since then to cover thousands of English-language bestselling series available by purchase or through Kindle Unlimited, per Pocket-lint.
Story So Far is distinct from Recaps in a useful way: rather than summarizing previous installments in a series, it generates a spoiler-free recap of the current book tailored to the reader's exact position. Amazon pitches it for readers returning to a novel after a long break, Engadget notes.
One caveat applies across all three tools: not every ebook qualifies. Amazon has said not every title is compatible, and the company has not published eligibility criteria, so readers will need to check individual titles. The current pool covers thousands of English-language titles in the US.
Who gets what, and when
The access picture splits four ways:
- US iPhone users have the full suite Ask this Book, Story So Far, and Recaps available now under the current rollout. This is the only platform where all three tools are live simultaneously.
- Android users can expect Recaps and Ask this Book by the end of 2026. No timeline has been announced for markets outside the US or for non-English titles on any platform, according to Engadget.
- Kindle owners with 2024-or-later hardware the current Paperwhite, Colorsoft, and all Scribe models already have Recaps and are slated to receive Ask this Book and Story So Far later this year.
- Kindle owners with pre-2024 hardware get Recaps and nothing else. Amazon has said the contextual tools are limited to devices released in 2024 or after, with no announced plans to extend them to older hardware. For those readers, the Kindle iOS app is currently the most capable version of Kindle available without buying new hardware.
The broader pattern: older hardware, fewer options
The AI feature rollout is the most visible part of a longer series of moves that have consistently left older devices with less.
In February 2025, Amazon removed the ability to download ebooks to a PC or Mac, Ars Technica reported. Then, three months ago, Amazon applied a newer DRM format called KFX-ZIP retroactively to Kindles from the 7th through 12th generations, without requiring a software update. That format has not been cracked, meaning readers who previously backed up purchased titles using tools like Calibre can no longer easily do so for newly downloaded books, according to Pocket-lint.
For owners of devices made before 2013 the original Kindle, Kindle Keyboard, Kindle Touch, and first-generation Paperwhite, among others the situation is more definitive. Starting May 20, those devices lost the ability to purchase or download new titles from Amazon's store. Books already on the device remain readable, but the device cannot add new ones, and a factory reset blocks signing back into an Amazon account, Ars Technica reported in April. Amazon's suggested path forward: a 20 percent discount on a new device and a $20 ebook credit. Entry Kindles start at $110; the Scribe starts at $400.
Taken together AI tools restricted to newer devices, desktop downloads removed, DRM tightened on older hardware, pre-2013 devices cut off from the store entirely the moves leave older hardware with fewer options at every turn and newer devices with the newest features.
The Authors Guild has pushed back specifically on the AI tools, arguing that adding an interactive chatbot to purchased ebooks effectively creates a new product format, one that should require separately negotiated rights. Amazon's position, relayed through spokesperson Ale Iraheta, is that Ask this Book "only uses content from the book as a prompt" rather than to train its underlying model, and that the feature amounts to "a natural language expansion of the search functionality that already exists in Kindle apps and for which no license is required." No opt-out exists for authors or publishers; Iraheta said the decision was made to maintain a consistent reading experience, per Engadget and The Verge. How that dispute resolves will carry implications well beyond Kindle.
What comes next
For most readers, the practical question is simple. If you own a Kindle made before 2024 and want access to Ask this Book or Story So Far, the iOS app is the only option available under Amazon's current plans. If you're outside the US, you're waiting regardless of what device or app you have.
The open questions worth watching: which titles will eventually qualify beyond the current US English pool, when Android users actually see Ask this Book land, and whether the Authors Guild dispute produces any change to Amazon's opt-out policy. The last of those may be the most consequential, not just for Kindle users, but for every platform considering how far AI features can reach into purchased content before rights holders get a say.
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