Last Software Update: 6th November, 2018.

The Ultimate Amazon Kindle Spy Tool Paperback Book(s) Spy Tool Hardcover Book(s) Spy Tool Kindle & Book Research App

"New Unique Software Application 'Reverse-Engineers' The Amazon
Marketplace & Reveals Lucrative Book Niches - In Seconds!"


RISK FREE – 60-Day 'No Questions' Money-Back Guarantee

PC Compatible

Mac Compatible

Firefox Compatible

Chrome Compatible

"This Tool is Freaking Awesome..."

"After seeing a review copy of KDSPY, Wesley, I just had to drop everything and send this email to you. You've outdone yourself here. This tool is freaking awesome. I love how it's integrated into the browser so I don't have to remember to use any software on my computer. I've always preferred doing my research ON Amazon, and now I have an assistant with me to tell me what I need to know in seconds. My research used to take hours, not anymore. With one click I can understand the landscape in any category in a matter of seconds ... and then, a book topic idea is given based on the best selling books in that category. All this ... and I'm only 10 seconds in. I'm blown away. Can't wait to see what else you come out with if this is the sort of software you produce."

Tim Castleman
3x Best Selling Author

"It gets better with each version ..."

"This levels the playing field in so many ways..."

First released in July 2014 – with 224 updates & 4 major rollouts, now...

Introducing KDSPY v5

The Fastest, Most Accurate Way To Identify 'Bestselling Book Niches'

Reverse Engineer The 'Best-Selling' Categories With A Single Click

Browse any Kindle or Book(s) category in the Amazon marketplace and – in the background – KDSPY will 'automatically' reverse engineer the best sellers. When you want more information about a category, just click on KDSPY and in mere seconds, you'll know the landscape of that category, the potential est. profit you could make here – PLUS a detailed breakdown of each book's performance.

Hover Your Mouse To See What '24hr Sales Volume' You Need To Compete

Once you've identified a category where enough potential exists for a new or existing book, a simple roll-over with your mouse on the red 'information' icon will highlight the est. DAILY sales you'll need in a 24 hour period for Amazon's algorithm to pay attention and compete with the bestsellers – highlighting the volume of sales you'll need to rank #1 and #20 in any given Kindle or Book category...

Another Click Tells You 'Exactly' What Your Next Book Topic Should Be

Once you've gathered data for the category you're interested in ... another click will give you a word cloud that calculates all of the words that the best selling books use in their titles. What better way to find best selling niches and get ideas for your next book than by modelling what's already working for other authors. KDSPY shows you the hot trends in any market, reveals the best-selling niches to go after – and even shows you the words to use in your book titles...

Analyse "Niche Potential" With The Kindle Search Results Analysis Feature

Once KDSPY spits out your next "best selling" book idea, why not run a few searches on Amazon around that niche and add a 2nd layer of confidence before you commit. Do any search in the Amazon Kindle Store and KDSPY will instantly tell you the potential in that niche. It doesn't get any quicker than this to research niche markets...

Spy On Self-Published Authors & Swipe Their 'Best-Selling' Topics

Ever wondered how much money other self-published authors are making? KDSPY will analyse any author page and tell you in seconds all their statistics. Just a single click will tell you the best-seller rank of all their Kindle, Paperback & Hardcover books. The estimated sales, and revenues per month. PLUS, see their total sales revenues broken down by their book types.

Track Your Competitors Book(s) Performance Daily Over 30 Days

Want to make sure the book topic you've chosen is a sure-fire winner? Well, just like with a website where you'd track the effectiveness of your competitors in the search engines, monitor their banner ads or their PPC ads – with KDSPY, you can keep an eye on as many Kindle, Paperback & Hardcover books as you'd like with our book tracking feature. KDSPY pulls the SalesRank for all your tracked books every day and displays their rank in chart form.

"My Most Valuable Software..."

“KDSPY is hands-down the most valuable software I have right now for my kindle business. I have been publishing books on Amazon for since last fall, but things never really took off until I started using Kindle Spy. This software made it so easy for me to quickly see profitable niche markets in my areas of interest and now nearly every book I publish is a bestseller! In the next few months, I will be making enough money to finally quit my day job – yahoo!I actually use KDSPY for more than just finding profitable niches to write books on. I also use it to follow my own books. I use it to see, at a glance, how my own books are doing, so that I can gear my marketing efforts towards the ones that need it, and celebrate the ones that don’t. Honestly, as a publisher, writer, and business owner, KDSPY is the first thing I check every morning and the last thing I check every night.”

Barb Asselin
Self Published Author

"So Impressed With KDSPY"

I've been publishing on Kindle for around 18 months. I'm now consistently earning between $8-10k per month for the last 3-4 months. If it wasn't for KDSPY, I don't know how else I'd be able to find all these profitable niches. I love the bonuses you offer too, especially the Excel ROI tracking spreadsheet that allows us to keep track of the profitability of our books. Thanks so much.

Sean Stewart
Self Published Author

"KDSPY Cut's Out All The Legwork ..."

I am quite new to Kindle and found it quite difficult to understand how to do proper research and understand what categories to focus my energy in. KDSPY cuts out all the legwork and in a matter of seconds you get a complete and detailed spreadsheet with upto the minute average sales revenue, amazon best sellers rank, number of reviews and total revenue for your chosen niche. Its invaluable and certainly opened my eyes to the untapped potential awaiting kindle publishers. Another plus is the "word cloud" feature of the top keyword in the titles per niche. That alone is a goldmine and we all know the power of a popular eye catching title! However, despite all these features and benefits, Wesley's constant hands-on backup support in answering any queries I had about using KDSPY and his willingness to listen to feedback sets this product apart from others I have brought. If you are looking to grow and rapidly expand your Kindle publishing empire, KDSPY will get you there faster.

Ntathu Allen
Self Published Author


Your purchase is 100% RISK FREE!

If you're not happy with KDSPY v5 for any reason whatsoever within 60 days, simply let our friendly support team know and we'll refund every penny of your investment, no questions asked.

...no hassle & no hoops to jump through!

"You've really created a fantastic tool!"

"This levels the playing field in so many ways!"

"Started finding great niches right away!"

"KS4 is a remarkable piece of work!"

"The search facility is hugely time saving!"

Incredible Feedback On The Original Version

Here's some unsolicited Facebook comments & emails from our early beta testers of V1.

Join Over 12,728 Authors & Start Spying in Minutes


Regular Price $97 - Today ONLY $47.00

* FREE Updates Included. 60-Day Satisfaction Guarantee.

KindleSpy Software

NOTE: Final price may include TAXES if you're outside the USA.


Frequently Asked Questions

Still sitting on the fence? Here's answers to some of the most commonly asked questions...

Does KDSPY work on Mac and PC?question

Yes. KDSPY is a Chrome Browser extension that is compatible with both PC & Mac. And the good news is, installation takes less than 4 seconds no matter what computer you’re using – seriously!

Can the results be exported? question

Yes. Absolutely. KDSPY will analyse all the Kindle, Paperback or Hardcover books in a category and give you an export of the results in under 29 seconds. But that’s not all. KDSPY will also allow you to export the word cloud, keyword results, author analysis and tracking data.

Does this work internationally?question

Yes. KDSPY will work anywhere in the world to pull data from one of the support stores. Originally KDSPY was created to pull results from the largest Amazon marketplace; the US. However, due to popular demand, KDSPY v5 now supports results from specific stores in the UK, Canada, Germany, Australia, France, Italy, Spain, India and Japan. If I get enough requests, I will also consider adding other countries too.

Do I get future updates to KDSPY?question

Yes. If you lock yourself in today for the insane price of just $47 (one-time) – that’s all you will ever pay. You will get ALL future fixes & feature updates to the software. And I plan on making a lot of improvements based on user feedback. Heck, we’ve made over 224 updates and rolled out over 20 advanced features since this was originally released in July 2014.

Does this work for fiction authors? question

KDSPY was originally created for my own “non-fiction” publishing business as the main benefit comes from identifying patterns from the best sellers. However, being able to research multiple fiction categories with the speed of KDSPY will save you countless hours of research time when trying to see which genres may be the most profitable to enter.

Does this work on any browser?question

KDSPY is programmed to work on Google Chrome and Mozilla Firefox. Due to the declining popularity of other browsers, it will unlikely be supported on any others in the future.


You are protected by our 60-Day No Questions Asked Money-Back Guarantee!