How Many?

Name: How Many?
Rating: 3.43 (56 reviews)
Author: how many extension

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…

As of June 2026, How Many? has 10,000 users and a 3.43/5 rating from 56 reviews in the Workflow & Planning category.

how many extension Workflow & Planning

Chrome Web Store ↗.crx

Users0%

10.0K

10,000

Rating0%

3.43

56 reviews

Reviews0%

Version

6.1.0

Manifest V3

90-day change · In the last 90 days this extension 3 version updates.

History

4 snapshots

Tracking since Apr 18, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 18, 2026	10.0K	3.43	56	5.0.50
Apr 23, 2026	10.0K	3.43	56	5.0.51
Apr 28, 2026	10.0K	3.43	56	6.0.0
May 11, 2026	10.0K	3.43	56	6.0.0
Now	10.0K	3.43	56	6.1.0

Permissions & access

Permissions: webRequestactiveTabstorage
Host access: *://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/*, https://*.amazon.fr/*, https://*.amazon.cn/*, https://*.amazon.ca/*, https://*.amazon.com.br/*, https://*.amazon.com.au/*

Screenshots

About

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 and then CLICK the icon and it will start to work.
You do not need a license key to use the free version. it just works for 5 uses each day.

Easily check how much your competition has available to purchase on amazon.
Returns available amounts to purchase if under 1,000 directly on the page.
Very fast and easy to use. Just get to the page and click the button.
No more adding the item to cart and using the 999 trick manually.
This extension does all that for you in the background.

How Many Premium Edition includes the following
1. Gets the buy box quantity (when available)
2. Gets the merchants listed on the main product detail page's available stock
3. Estimates sales volumes or if you have Jungle Scout installed it will use those sales estimations (Check the options page)
4. Sub-totals the FBA and MCF available quantity
5. Gives estimated 30 day sell through price. Make more profit!!
6. Gets next lowest offer (not including shipping) and the available quantity on all offers pages
7. All new variation viewer (includes out of stock variations!!)
8. iOS and Android Companion App
9. Right-Click context menu
10. Get available quantity on storefronts
11. Reveal when a merchant is limiting their stock quantities
12. Reveal the true inventory number if merchant is hiding their stock amount up to 999

All this for a small monthly fee

limitations:

Current version does not work on some amazon Europe countries
If merchant fullfilled offer is limiting quantity we only get the available quantity to purchase at any given time.

If you need help please contact us at [email protected] or visit our private policy here: https://howmanyextension.com/privacy-policy