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Stable signalFree or hybridMedium-risk permissions
Check Competitor Stock Levels - Inventory Spy icon

Check Competitor Stock Levels - Inventory Spy

Spy how many products remain on any Amazon Product’s offer listing page. Check your competitor’s stock!

Users7KCurrent public install base
Rating3.3Store average score
Reviews33Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

Check Competitor Stock Levels - Inventory Spy Media preview

3 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

7K7K7K7K7K2026年7月15日2026年7月18日2026年7月21日Latest: 7K
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
3.30
Latest
3.30
7-day rating change
0.00
3.203.253.303.353.402026年7月15日2026年7月18日2026年7月21日Latest: 3.30
2026年7月15日2026年7月21日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat
00%
7-day growthFlat
00%
30-day growthDeclining
-1K-12.5%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version3.0.1
ManifestV3
Size34.87KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

Monitor Competitor's inventory levels with Inventory Spy!

See the currently remaining inventory of your Amazon competitors. Just browse to a product's used and new offers on an Amazon offer-listings page and click the spy icon on the Google Chrome toolbar. You will see how many units remain in stock for all offers on the page in under ten seconds!

Inventory Spy is the perfect tool for Amazon Marketplace sellers who want to make more money. You can make better pricing and restocking decisions using inventory level information. Forecast your competitor's trends and always keep a step ahead!

Inventory Spy was designed and built by Amazon merchants and has been actively used since 2012.

You can learn how to monitor the product stock of your competitors in just 3 easy steps:

1) Add Inventory Spy extension app to your Chrome browser. It's FREE!

Reviews

Recent review snapshot

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Store average score3.3Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.0Average computed only from synced review bodies below
Reviews with text28Synced review bodies
Total ratings / reviews33Chrome Web Store public rating/review count

Store average score: 3.3. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★
11
4★
1
3★
3
2★
4
1★
9
Joni Taylor2025年1月31日
5

Wonderful product for Amazon sellers that I have used for many years! Thanks!

Version 3.0.1Language en
JE L2022年6月8日
2

works when I was able to use paid the 10 bucks and still says im on a free account and can only do 5 clicks a day. will be disputing with paypal if developer does not contact me back.

Language en
1 helpful · 0 not helpful
Kelly Livingston2022年4月9日
1

What a scam! Stay from this company. The tool is worthless and always broken. Such a disappointment. Good like trying to get support from the developer. The extension keeps crashing.

Language en
Muhammad Imran2021年10月27日
1

I just installed it but its not showing any results

Language en
Jim Crae2021年3月3日
1

I like the product overall, but not the customer service. This is the response they gave me when asking for clarification into why I could not see an accurate inventory total for Amazon on a listing. Please read their response below. Like we said, we can only show the data that Amazon allows us to see. This is not a magic wand into Amazon's databases. The product works retrieving inventory where items < 999 in 99% of cases. If you are not happy with that, then please cancel. There is nothing short of being an amazon data administrator that will give you the last 1% of inventory data we are not allowed to see. We may however be able to display when the inventory is masked in these cases.

Language en
Ny Robi2021年1月3日
1

Does not work! I get a pop up saying: "We are sorry but the Inventory Spy Service is currently unavailable. Please try again later."

Language en
1 helpful · 0 not helpful
Angelina Aguilar2020年12月4日
1

It's supposed to work for Amazon Mexico. I tried 2 or 3 items and it keeps "working" (yellow circle) but don't get any results, it kept working all night and still no results. Would really like to know if this extension still works and if it really works for Amazon Mexico.

Language en
Adam2020年7月22日
1

As others have stated, only 5 clicks per day for the free app. Also, this does not tell you the accurate levels of inventory on Amazon - it ONLY tells you how many they allow you to purchase. For example, if a product has a 20 purchase limit on their product, this will show that there are (20) products left in stock, which is not accurate. All in all 0/5 if I could. Don't waste your time.

Language en
2 helpful · 1 not helpful
Venator2020年6月26日
3

Alright.

Language en
John Kelly2019年9月3日
2

Its a decent app but very slow. Also I thought it was free but after 5 searches I was told I'd hit my daily limit and I was forwarded to a buy page to buy the pro version for $9.95/mth. No mention anywhere about a search limit or a pro version.

Language en
0 helpful · 1 not helpful
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