KDSPY Pro

Name: KDSPY Pro
Rating: 3.4615 (13 reviews)
Author: Wesley Atkins

KDPSY v5 is a 'time-saving' research companion that every author – fiction or non-fiction – should have in their toolbox. Research your competitors, potential niche markets, categories, keywords, and title ideas – all while you're browsing Amazon.

Overview

Firefox Add-ons Store

Daily users

1,338 ▼ 12

Data as of 2026-08-01

Rating:

3.46

(13)

Version:

5.13.56

Last updated: 2026-05-12

Features & Capabilities

KDSPY Pro is an essential research companion for authors, whether fiction or non-fiction, designed to save time and maximize market insights while browsing Amazon. It allows users to analyze competitors, explore profitable niches, assess over 32,000 categories, and generate title and keyword ideas directly via a one-click browser plugin. Features include revenue estimates, hourly sales stats, competitor sales tracking over 30 days, keyword profitability comparisons, and bestseller reverse engineering.

This powerful paid add-on enables authors to write books that resonate with their target audience, optimize sales strategies, and grow readership by making data-driven decisions quickly and easily within the Amazon ecosystem.

User Growth & Download Statistics

Add-on Marketing Writing Education

By:

Daily users:

Rating:

Version:

5.13.56 Last updated: 2026-05-12

Version code:

6257779

Creation date:

2019-08-09

Risk:

Permissions:

storage
alarms
scripting
*://*.publishingaltitude.com/*
*://*.google.com/*
*://*.amazon.com/*
*://*.amazon.co.uk/*
*://*.amazon.de/*
*://*.amazon.fr/*
*://*.amazon.pl/*

Content scripts matches:

*.amazon.com
*.amazon.co.uk
*.amazon.de
*.amazon.fr
*.amazon.pl
*.amazon.ca
*.amazon.it
*.amazon.es
*.amazon.in
*.amazon.co.jp

Size:

2.04MB

Email:

su*****@publishingaltitude.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-01

Compare stats and ranking:

Ranking

# 2,782 ▼ 17

Other rankings

#113 in Shopping ▲ 1

#328 in Search Tools ▼ 1

#1 in ad spy keyword 22

#31 in author keyword 13 ▼ 1

#36 in payments keyword 20

Upgrade to see more rankings

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Wesley Atkins

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/kdspy-v5/

Email:

su*****@publishingaltitude.com

Website:

https://www.publishingaltitude.com/contact-us/

Permission Change History

2024-12-06: Version 5.13.30 → 5.13.31

Add Optional permissions: https://chatgpt.com/*

Remove Optional permissions: https://chat.openai.com/*

2023-10-04: Version 5.12.7 → 5.13.1

Add Permissions: *://*.amazon.pl/*

2023-03-06: Version 5.10.2 → 5.11.0

Add Optional permissions: https://chat.openai.com/*

2022-11-09: Version 5.9.82 → 5.9.91

Add Permissions: scripting

User Reviews

Users appreciate KDSPY Pro's accuracy and some new users like it initially. However, multiple reviews highlight issues with the add-on requiring payment without free features and problems accessing it after purchase, causing distrust among users.

Pros

Users find KDSPY Pro to be accurate in its functionality.
Some new users have a positive initial impression of the app.

Cons

No features are available without payment, leading to perceptions of a scam.
Users report being unable to access the extension after paying.

Recent reviews

by Fi*****, 2025-07-20

by 退出*****, 2025-03-27

View all user reviews ›

Is KDSPY Pro Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

KDSPY Pro requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: publishingaltitude.com, google.com, amazon.com, co.uk, amazon.de, amazon.fr, amazon.pl, amazon.ca, amazon.it, amazon.es, amazon.in, co.jp, com.au, com.br, com.mx
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

KDSPY Pro is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******