How Many?

The free version of this extension only works on amazon pages with the offer-listings in the url. You must be on that type of page…

How Many? - Amazon Inventory Checker Chrome Extension

"How Many?" is a powerful Chrome extension designed for Amazon sellers to quickly check available inventory directly on specific Amazon pages. By simply clicking the icon, users can find out how much stock their competition has, without the hassle of adding items to the cart. The free version allows 5 uses per day on offer-listings pages. Upgrade to the premium version for features like bulk stock checks, sales estimates, and more. Streamline your Amazon market research with ease.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 10,000+
Rating: 3.37
(57)
Version: 5.0.45 (Last updated: 2025-02-26)
Creation date: 2019-11-15
Permissions:
  • webRequest
  • activeTab
  • storage
Host permissions:
  • *://app.howmanyextension.com/*
  • https://api-v2.howmanyextension.com/*
  • https://*.amazon.com/*
  • https://*.amazon.co.uk/*
  • https://*.amazon.es/*
  • https://*.amazon.nl/*
  • https://*.amazon.com.mx/*
  • https://*.amazon.it/*
  • https://*.amazon.in/*
  • https://*.amazon.de/*
  • See more
Size: 944.13K
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Fast and easy to use
  • Useful for new Amazon sellers
  • Good support
Cons
  • Inaccurate inventory numbers
  • Unresponsive customer service
  • Overpriced
  • Free demo version not working
Most mentioned
  • Inaccurate inventory numbers
  • Unresponsive customer service
  • Overpriced
  • Doesn't work
  • Free demo version not working
User reviews
This app doesn't give true numbers when it comes to limit buster. I even tested out my own offer on Amazon, and the amount of inventory for my listing is showing inaccurate numbers compared to my real amount of inventory. A competitors listing has has very inconsistent numbers when it comes to limit buster. One day it will show 999 or 450 etc.. the next day on the listing it will show 99 in inventory and then the numbers jump up. It doesn't do it job. I believe they are trying to deceive the public. I got contacted by a customer support person after I emailed them, and I addressed the issue, but never got a response again when I showed them the issue.
by Sergio Bueno, 2022-08-11

I used this for years and even had other subscribe to it. However I cancelled my account last year but it was renewed again 2 days ago. I cancelled again but now I want a refund. There is no way to send a message and when I try to submit a ticket, the CAPTCHA won't let me get past. This is very bad business. I wish someone would contact me and give me a refund.
by Regina Robinson, 2022-02-12

Good.
by Venator, 2020-06-26
View all user reviews

Extension safety

Risk impact

How Many? requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of How Many?. Use it at your own risk.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
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  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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