Kindle Spy Review – The Ultimate Amazon Kindle Spy Tool

KindleSpy is one of the most popular browser applications, which helps you more quickly find profitable keywords for your Amazon KDP books.

If you’re tired of needing to open multiple windows to analyze all the necessary information, such as books paid rank, number of reviews, etc before deciding whether a keyword is profitable or not. And you would like to ease up a bit by having all these details compact in a single place then KindleSpy is the solution you have been looking for!

This browser app provides all the necessary information with a click of a button.

Why Should You Get Kindle Spy ?

A successful Kindle business relies on your ability to select profitable keywords for your books. This process is time consuming & monotonous. You normally need to go through hundreds of keywords & analyze them. In my case, I often spend a week or 2 searching for a good selection of keywords.

I determine their profitability by asking myself:

  • Are the top five book results below the 100 000 paid in Kindle store?
  • How many reviews do these books have?
  • How many pages do these books have?
  • Can I compete with these books?

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Anyway, the problem is for you to gather all these details you need to open each book individually; then scroll down until you’re able to see the paid rank, numbers of pages etc.

This makes the whole process tedious & time consuming. Especially when you consider that you need to repeat this analysis for hundreds of keywords.

And that’s where Kindle Spy comes in! Just with a click of a button you can get all these details in a single window in a few seconds.

IF you’re thinking about building a Kindle business then this software is essential!

No more scrolling down, opening multiple pages or whatever to see all this details. As you may see in the image, I can quickly analyze:

Sales Ranks – The higher a sales rank for a book the more copies it’s selling inside of Amazon. For instance, if the top five books for a keyword have a sales rank above 100000 then they are not selling well. My assumption is if these books are not selling then certainly mine will not either. So I discard that keyword & analyze another one.

Reviews – You can quickly see that the keyword “Yoga” is highly competitive by the number of reviews each books has. These books are definitely from well know authors. In case, you’re a new publisher then it would be extremely hard to compete with them.

Est Sales & Monthly Rev – Gives you an idea of the amount of sales & revenue for these books. However, this is just an estimate & not something 100% accurate.

Pages – Nearly all the “Yoga” books are lengthy. So people searching for this keyword are expecting lengthier books. If you’re paying a ghostwriter then producing such a lengthy book will end up being too expensive. Probably, not worth it’s production.

Popularity, Potential, Competition – I do not use this section to determine whether a keyword is worthy pursuing or not.

As you may see, KindleSpy speeds up the process & makes everything less monotonous. You no longer need to waste time opening several windows, scrolling down or whatever to find the same information.

Another great feature this app has is called, “Word Cloud”.

This function grabs the most common words used in the titles of these books. Afterward, you can combine 2 words or more & get new keyword ideas. Just with a quick glance I see for instance:

  • Yoga poses
  • Yoga practice
  • Yoga asanas

Perhaps, these keywords may be profitable & less competitive than “Yoga”. Where you may later on publish your books & make bank!


  • Easy 1 click installation
  • Speed up the process of finding profitable keywords by compacting everything in 1 window.
  • The, “Word Cloud” feature provides an easy way to discover new keyword ideas


  • This application is only viable for Google Chrome & Mozilla
  • Sometimes Kindle Spy does not work properly. However, this problem is easily solved by refreshing your web-page

Congratulations on a great upgrade, Wesley. KS4 is a remarkable piece of work and will enable every book marketer to write better books for a marketplace that is tightly defined in advance. Your software has brought book marketing to a whole new level and eliminates many, if not most, mistakes made by new publishers and marketers. You have literally opened up and de-mystified the role of direct response marketing in the development and sales of books and meaningful content. I expect to see a lot of new profit windows opening up for self-publishers, and the excitement in this business re-charged. Thank you for the serious attention and commitment you make in keeping KS at the forefront of the business. Wishing you continued success…

Thom Reece

I’ve had KindleSpy since vl, but didn’t use Chrome much back then. Over time, I used KDSpy more and more and with v4 you’ve really created a fantastic tool. I love the many possibilities – not just for finding niches to publish books in, but also other huge money-making ways that might even beat the publishing ones.

Britt Malka

I’ve just uploaded 4 and it’s got so much more now than before. The search facility is hugely time-saving and I’ve already been able to eliminate a series title I was thinking about. This means I’ll be able to test different titles to get the one with best potential. Also like that it’s now compatible with different browsers and that we can check for different countries too. Very well worth the initial outlay and as the updates are free, I feel I’ve got great value for money.

Elizabeth Bailey

Wesley had developed a great tool for Kindle research. I’m very impressed with the speed. After downloading V4 I spent a few minutes to get acquainted with the upgrade and started finding great niches right away. This does feel like a secret weapon. Thanks Wesley for taking care of your previous customers.

Preston McCracken
Love the KDSpy tool to help me see trends in the market, as well as verify how I’m doing, in a snapshot graph, compared to other creators in my genre. I also use it when I am contacted by creators I am not sure, or when I want to learn about what successes others are having that I can learn from.

Sharon Hamilton
One of the best tools an author can have in their toolbox for finding the right category to get ranked in, identifying keywords and also tracking your books and those of other creators for sales ranking!

Lise Cartwright

Should You Get KindleSpy?

Of course! If you’re serious about building a profitable Kindle business then KindleSpy is essential! It’ll make your process of discovering profitable keyword a lot faster. As they commonly say, time is money!

So speed up your process of making cash online today!

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