Kindle Unlimited Review 2025: What You Need to Know About Amazon’s Book Subscription

Updated November 2025

If you’re here, you likely enjoy reading and may be branching out to digital books. And, if you are in fact interested in digital books, Kindle Unlimited might sound like a dream. You can get unlimited access to a great number of books, magazines, and even audiobooks for one monthly price.

Initially offered as a supplementary book reading service, Kindle Unlimited has grown into one of the most popular Amazon membership programs. But is it worth it? What exactly does Kindle Unlimited include, and how does it differ from Prime Reading?

In this post, we’ll try to cover everything you need to know about Amazon’s Kindle Unlimited subscription, what you get, how it works, and whether it’s right for you.

Here’s what you can find:

What is Kindle Unlimited?

Kindle Unlimited is not a new service. It was launched in July 2014 as Amazon’s digital book subscription service. It lets you borrow and read digital books, comics, and magazines from their extensive “virtual” library. With Kindle Unlimited, you do not have to buy each title individually. Well, technically, that’s how libraries work.

An interesting fact: when Kindle Unlimited first started, it offered about 600,000 e-books and thousands of audiobooks. As of 2025, it has expanded to more than 5 million titles, with new authors and indie publishers joining every month.

Where Can You Read Kindle Unlimited Books?

What’s great for you, as a reader, is that you don’t need to own a Kindle e-reader to be able to borrow digital books through Kindle Unlimited. However, to access their “virtual” library, you must have a device that can download the free Kindle app.

That said, many devices support the Kindle app, including lots of smartphones (iOS and Android), tablets, and computers (PC and Mac). You’ll need to download the app from your device’s app store, sign in with your Amazon account, and, if you have the subscription ready, you should be able to start reading instantly.

Additionally, you can also read using Kindle Cloud Reader at read.amazon.com. It lets you access your Kindle books directly in a web browser without having to install any apps on your device. But keep in mind that Kindle Cloud Reader offers fewer features than the mobile and desktop apps. Therefore, some titles may not be available there.

Is Kindle Unlimited Popular?

Unfortunately, Amazon doesn’t release many official statistics about Kindle Unlimited. However, Written Word Media estimated that, in 2023, over 41 million average-length novels were read through KU (Kindle Unlimited) subscriptions per month. Further calculations assess that there are over 4 million readers in Amazon’s Kindle Unlimited.

Where Is Kindle Unlimited Available?

Kindle Unlimited isn’t yet global, so you will face some geographical restrictions. Customers should sign up for Kindle Unlimited in their local Amazon marketplace.

Subject to change, currently these are the regional marketplaces Amazon serves:

• United States
• Canada
• United Kingdom
• Germany
• France
• Italy
• Spain
• Mexico
• India
• Australia
• Japan
• Brazil

Kindle Unlimited Cost (as at 2025)

Pricing varies by country, but as of 2025, here’s what you can expect for monthly costs:

It’s worth noting that Amazon occasionally runs promotions offering 2 or 3 months free for new users, and there’s usually a free trial. Always check for offers or freebies before subscribing, as these can save you money!

How Many Books Can You Borrow With Kindle Unlimited?

While the subscription says Kindle “Unlimited”, it’s not technically unlimited. In fact, you can borrow up to 20 eligible Kindle Unlimited titles at a time. What does it all mean?

By “titles,” Amazon likely means e-books, audiobooks, and magazines, and “eligible” titles usually display a badge in the Kindle store for quick identification.

Now, back to the original question – how many books can you borrow with Kindle Unlimited (KU)? Technically, you can borrow up to 20 titles in one go. Don’t be put off by the “20 titles” – it only means that you can have 20 borrowed at the same time. If you finish a book, you can simply “return” it to get another one—this way you’re not at your 20 limit.

Additionally, while you can access your Kindle app on many owned devices, it’s important to note that the limit remains 20 per account, not per device.

Lastly, borrowed books, magazines, or audiobooks can be accessed via Wi-Fi or the Kindle app, but they cannot be downloaded or transferred to a USB device.

Does Kindle Unlimited Include Audiobooks?

Simply answered, yes. However, Kindle Unlimited audiobooks do not give you free access to Audible audiobooks. Kindle Unlimited offers audio narration for thousands of Kindle Unlimited titles.

Amazon calls it an “audiobook companion” that you can download to your Kindle or Kindle app (but not the Audible app). These titles technically refer to the Audible-produced audiobooks that can be paired with a Kindle book.

You may also see the phrase “Whispersync for Voice,” Amazon’s feature that lets you easily switch between reading your Kindle e-book and listening to the audiobook.

Important reminders:

• You can listen through the Kindle app or a compatible Kindle device.
• These audiobooks are not part of Audible. Audible is Amazon’s separate audiobook service.
• You can’t access them in your Audible app.

Does Kindle Unlimited Have Titles From Major Publishers?

Many ask: Does Kindle Unlimited include all books? The answer is very straightforward: no, Kindle Unlimited does not include all books.

Since Amazon launched Kindle Unlimited, the biggest drawback has been the absence of many major publishers, such as HarperCollins, Penguin Random House, and Macmillan.

Has it changed since, and what does it mean for you? Actually, you can now find certain books from major publishers on Kindle Unlimited (KU), but the catalogue of titles is still heavily weighted toward self-published and independent ones. In other words, if you’re looking for the newest releases, you may feel disappointed as a significant portion of them, especially the newest titles and hot bestsellers, are often excluded from Kindle Unlimited.

However, if you’re looking to discover new books, explore indie authors and small publishers, find new authors through self-published titles, or expand your genre fiction, Kindle Unlimited could be great for you.

Kindle Unlimited vs Prime Reading

A common question: Is Kindle Unlimited included with Amazon Prime? No, Kindle Unlimited is separate from your Amazon Prime subscription. Prime Reading, included with Amazon Prime, offers a rotating library of around 1,000 titles, while Kindle Unlimited gives its subscribers access to millions of titles.

Frequently Asked Questions (FAQs)

Is Kindle Unlimited free with Amazon Prime?
No. Kindle Unlimited is a separate subscription from Amazon’s Prime Reading.

Can I keep the books after cancelling?
No. Kindle Unlimited lets you borrow books, not own them. Hence, once your subscription ends, you will lose access to borrowed titles.

Does Kindle Unlimited include audiobooks?
Yes, it does. There are many titles that have an Audible Narration. However, they’re accessed via the Kindle app, not the Audible app.

How many books can you read on Kindle Unlimited?
You can borrow up to 20 books at a time, returning one to borrow another. But it doesn’t mean that you can borrow only 20 books. If you return a book, you can borrow another.

Can I use Kindle Unlimited without a Kindle e-reader?
Yes. Download the free Kindle app on a supported device: your phone, tablet, or computer.

Final Thoughts

While Kindle Unlimited isn’t perfect, it’s still one of the best value-reading subscriptions out there in 2025. Affordable price, millions of titles, new books constantly added, flexible reading options, and an easy cancellation process — it’s a convenient way to keep your reading list full year-round.

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