Comprehensive Research Tool for Authors

KDSPY Pro is a subscription-based research companion designed for authors looking to streamline their market analysis. This Firefox add-on allows users to conduct in-depth research on competitors, niche markets, and keywords directly while browsing Amazon. With a simple click on the spy icon, users can access detailed statistics on book sales, estimated revenues, and sales trends across over 32,000 categories. The tool is particularly beneficial for authors aiming to identify profitable niches and gather inspiration for their next projects.

In addition to tracking competitors' sales over a 30-day period, KDSPY Pro enables authors to evaluate the profitability of specific keywords for their Amazon listings. This functionality helps users craft titles and content that align with market demand, ultimately enhancing their visibility and sales potential. As a paid add-on, KDSPY Pro requires a subscription, and all features are accessible once the account is created and payment is processed.

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App specs

  • License

    Subscription

  • Version

    5.13.55
  • Latest update

  • Platform

    firefox

  • Downloads

    2

  • Size

    2.14 MB

  • Developer

Program available in other languages



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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is KDSPY Pro safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Saturday, October 18, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
5.13.55.xpi
SHA256
2ac97da0e04ecccb05c40ed8792b2a00b7a12cf116a7cb9f7e02f9439c90034e
SHA1
cba51d27b036bdb6b575c487ddd59da3a2eaf191

Softonic security commitment

KDSPY Pro has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center