What Is Kindle Unlimited? Here’s Everything You Need to Know

Person holding a Kindle wondering what is Kindle Unlimited.

If the idea of binge reading sounds like a dream come true, Kindle Unlimited may be the perfect solution. The Amazon subscription service gives you access to over four million ebooks for a monthly fee. Depending on how much you read each month, you can save money while enjoying your favorite books. Wondering what Kindle Unlimited is and whether it’s really worth it? Dive in to this guide to find out.

What Is Kindle Unlimited?

Kindle Unlimited, often referred to as KU, is an ebook subscription service through Amazon. The vast library of more than four million titles ensures that there’s something available for all interests. Instead of paying for each individual title, pay one fee for an all-you-can-read buffet.

The good news is it’s not just ebooks. The subscription also includes comic books, audiobooks, and even magazine subscriptions. Currently, there are over 5,000 audiobooks to choose from.

Amazon's Kindle Unlimited list of benefits page.

Kindle Unlimited doesn’t include every book sold on Amazon. In fact, if you want the latest bestsellers, you’ll likely need to buy those directly, perhaps through Audible, as they’re often not included. You’ll still find some major titles, though.

Typically, you’ll find more indie or self-published authors, which isn’t a bad thing. In fact, most of my Kindle library is filled with self-published titles, and they’re just as well-written with engaging plotlines as those written by well-known bestselling authors.

Access Kindle Unlimited titles through the Kindle app or Kindle Cloud Reader on almost any device.

What Is Kindle Unlimited Pricing?

Surprisingly, Kindle Unlimited is just $11.99/month. Considering the cost of some ebooks is over $5, you’ll pay for your membership as long as you read two or three books a month.

However, many self-published and indie titles are priced $2.99 or less, so you’d need to read at least four titles at $2.99 each to come close to breaking even. If you only read a few books a month, the subscription may not be of much value to you.

For avid readers who tear through thousands of pages every month, then yes, the price is well worth it.

What Are Kindle Unlimited Limitations?

If the massive library of titles and monthly fee sound okay, there’s one more thing you should know: you don’t own any of the ebooks. Much like a music or TV streaming service, you only rent the ebooks temporarily. If you cancel your subscription or the author/publisher decides to remove their titles from the Kindle Unlimited library, you no longer have access to the book.

Kindle showing the book Show Your Work by Austin Kleon.
Image source: Unsplash

Borrow up to 20 titles at a time. While you can read far more than 10 books per month, you have to return a book before adding another title. You’re free to keep a title as long as you’re subscribed, so there’s no need to rush through. Magazine issues don’t count toward your limit.

Kindle Unlimited vs. Prime Reading: Which Is Best?

Technically, Amazon has two different ebook subscription services. The major one is Kindle Unlimited. However, if you’re a Prime member, you also get access to Prime Reading included with your membership for $14.99/month or $139/year.

Prime Reading works similarly to Kindle Unlimited. While you borrow titles, the library only has thousands of rotating titles, but you’ll find more bestsellers and big publishers in this selection. You also get access to a limited rotating selection (around 50) of audiobooks.

Amazon's Prime Reading benefits page.

If you’re already a Prime member, it’s worth checking out what’s available in Prime Reading before subscribing to Kindle Unlimited. If you’re looking to branch out to a wider variety of authors and publishers, then Kindle Unlimited may be the better option for the much larger library.

Kindle Unlimited isn’t included with Prime, and you don’t need to be a Prime member to subscribe to Kindle Unlimited. The two are completely separate.

How to Start Kindle Unlimited Membership

Visit the Kindle Unlimited section on Amazon, and sign in with your account. Do this via desktop, Kindle apps, or the Amazon shopping app. For iOS devices, you’ll need to visit the actual website to sign up.

Once you’re signed in, you’ll see any current new subscriber deals. Sometimes a free 30-day trial is available, but this isn’t always the case. For example, I already had a trial just over a year ago, but I was offered two months for $4.99.

Kindle Unlimited deals for new subscribers.

Once you’ve chosen your deal, if one’s available, simply click Join Kindle Unlimited to start your subscription. Start borrowing any KU titles immediately after signup.

If you’re looking for deals on a Kindle Unlimited membership, wait for special discount periods throughout the year. November and December often have free trials and discounted months.

You’ll also find discounts around Prime Day and most major holidays. If you purchase a Kindle or Amazon device, you may also get an offer to try Kindle Unlimited for free for a set number of months or get access to a discounted offer.

How to Find Kindle Unlimited Books

Since the Kindle Unlimited library doesn’t include every ebook, you need to know how to limit your search options. You can visit the Kindle Unlimited section directly, or open the Kindle Store on your device, then filter by Kindle Unlimited Eligible. There’s also a filter for Prime Reading if you are a Prime member.

Filter ebooks by Kindle Unlimited or Prime Reading.

Once you’ve filtered the library options by Kindle Unlimited titles, further filter by category to continue browsing based on the genre you’re most interested in.

Another filter you may want to use is eBooks with Audible Narration. It’s important to note that text-to-speech is available on many ebooks, though it won’t be the same as a professionally narrated ebook through Audible.

Filter ebook results by those with an Audible audiobook.

You can also add Audible narration on Kindle Unlimited books – even if they’re not included as part of your membership. Look carefully at the pricing details to see whether Audible Narration is included for free.

When you look at a book’s details, look for headphones next to Kindle Unlimited. If you don’t see headphones, Audible narration is not included for free. You can still buy the narration separately, though, if you’d like.

Kindle Unlimited book with Audible audiobook version.

How to Listen to Audiobooks With Kindle Unlimited

Audiobooks with headphones

You don’t need an Audible membership to listen to audiobooks with Kindle Unlimited. However, it can get confusing trying to figure out which audiobooks are included. Filtering by eBooks with Audible Narration when you’re searching for a book is the easiest option.

Unless you see the orange headphones in the KindleUnlimited box, the audiobook version isn’t included in your membership. As mentioned above, you can choose to add the Audible narration for an additional fee, which is listed with the book details.

Once you’ve added an included audiobook to your account, access it with the free Kindle reading app or Audible’s free listening app. For Audible, sign in with your Amazon account.

Kindle Unlimited vs. Audible

If you’re more interested in audiobooks than just ebooks, carefully compare Kindle Unlimited and Audible to see which membership is best for you. Kindle Unlimited’s biggest benefit is the combination of over a million ebooks along with a small selection of audiobooks.

Audible app on iPhone

Audible, on the other hand, has several different subscription plans that give you unlimited access to a library of over 11,000 titles. Titles do rotate in and out, though, and those that aren’t included must be purchased separately. Audible plans range from $7.95/month to $229.50/year.

Credits allow you to buy any premium title that’s not included in the Plus Catalog or purchase Plus Catalog titles to keep even after your subscription ends. Members also get exclusive access to sales and 30 percent off purchases.

In terms of audiobooks, Audible is better than Kindle Unlimited. But if you want ebooks and audiobooks, Kindle Unlimited is the best choice.

How to Borrow and Return Kindle Unlimited Titles

Note: Kindle Unlimited and Prime Reading borrowing work the same. The examples shown here are for Kindle Unlimited.

Once you find the title you want to borrow, simply click or tap the Kindle $0.00 KindleUnlimited option to add it to your Kindle library. You can also use the Read for Free button.

Borrowing a book on Amazon along with how to deliver it to your device.

Once you have borrowed your chosen book, select the device you want it delivered to using the Deliver To drop-down menu. Alternatively, search for the title on your device, and download it to your device later.

Since you can only have 20 titles at a time, you’ll need to return anything you’re finished with before you can borrow new titles.

From the website, log in to your account, click your name at the top, and go to Content and Devices. Quickly find your borrowed books by selecting Kindle Unlimited from the drop-down menu.

Finding borrowed ebooks on your devices.

When you locate your title, select Return this book to remove it from your library and device(s).

In the Kindle app, long-press on the book, and choose Return Book.

In the Amazon app, open the menu, select Account, and choose Content and devices. Select your title, and choose Return book. You may need to use the See More arrow under the title to see this option.

Once returned, you’re able to borrow another title. Remember, you can keep a title for as long as you want as long you’re subscribed, and the title isn’t removed by the author/publisher. You can also borrow it again if you’d like.

How to Cancel a Kindle Unlimited Subscription

There is zero commitment with a Kindle Unlimited subscription. Cancel at any time. When you cancel, any borrowed titles are removed from your device at the end of your billing cycle.

To cancel your Kindle Unlimited subscription, log in to your Amazon account, and open the menu. Choose Memberships and subscriptions. On the Amazon shopping app, select Account from the menu, then Memberships and subscriptions.

Choosing Memberships and Subscriptions from the Amazon Account menu.

Choose your Kindle Unlimited subscription, and select Manage Subscription. Choose End membership on, and select a date. Select the end of your billing cycle or a future date if you want to keep your membership for a longer period but don’t want to forget to cancel.

Is Kindle Unlimited worth it for you? It’s the ideal option for anyone who loves to read and devours at least three or four books per month or more. While you may not always find the latest bestsellers, there is never any shortage of titles to read. If you prefer something else, try these Kindle Unlimited alternatives, and learn how to use a Kindle without an Amazon account.

Image credit: Unsplash. All screenshots by Crystal Crowder

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Crystal Crowder
Crystal Crowder - Staff Writer

Crystal Crowder has spent over 15 years working in the tech industry, first as an IT technician and then as a writer. She works to help teach others how to get the most from their devices, systems, and apps. She stays on top of the latest trends and is always finding solutions to common tech problems.