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Costco Price Adjuster

Chrome extension by DB Webstore Extensions · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 104 users, barely installed. Audience over the last 30 days: +8.

Specific sites only: 1 match pattern.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
104
Rating
5.0 (4 ratings)
Users, last 30 days
+8
Rating, last 30 days
Steady over 30 days
Version
1.1.6
Updated in the store
2025-11-23
Published
2025-01-07
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
+8 since 02.10
96-107 · 17 readings
  1. 2026-10-0598
  2. 2026-10-0899
  3. 2026-10-09102
  4. 2026-10-1099
  5. 2026-10-13105
  6. 2026-10-16102
  7. 2026-10-17101
  8. 2026-10-18104
  9. 2026-10-19105
  10. 2026-10-21107
  11. 2026-10-22106
  12. 2026-10-24105
  13. 2026-10-2599
  14. 2026-10-2898
  15. 2026-10-2999
  16. 2026-10-30100
  17. 2026-11-01104
Rating
unchanged since 02.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-05reviews4rating5.00
  2. 2026-10-08reviews4rating5.00
  3. 2026-10-09reviews4rating5.00
  4. 2026-10-10reviews4rating5.00
  5. 2026-10-13reviews4rating5.00
  6. 2026-10-16reviews4rating5.00
  7. 2026-10-17reviews4rating5.00
  8. 2026-10-18reviews4rating5.00
  9. 2026-10-19reviews4rating5.00
  10. 2026-10-21reviews4rating5.00
  11. 2026-10-22reviews4rating5.00
  12. 2026-10-24reviews4rating5.00
  13. 2026-10-25reviews4rating5.00
  14. 2026-10-28reviews4rating5.00
  15. 2026-10-29reviews4rating5.00
  16. 2026-10-30reviews4rating5.00
  17. 2026-11-01reviews4rating5.00
Users
-2 since 01.09
90-107 · 28 readings
  1. 2026-09-01106
  2. 2026-09-05104
  3. 2026-09-06101
  4. 2026-09-08102
  5. 2026-09-10103
  6. 2026-09-13102
  7. 2026-09-15105
  8. 2026-09-1799
  9. 2026-09-2590
  10. 2026-09-2695
  11. 2026-09-2896
  12. 2026-10-0598
  13. 2026-10-0899
  14. 2026-10-09102
  15. 2026-10-1099
  16. 2026-10-13105
  17. 2026-10-16102
  18. 2026-10-17101
  19. 2026-10-18104
  20. 2026-10-19105
  21. 2026-10-21107
  22. 2026-10-22106
  23. 2026-10-24105
  24. 2026-10-2599
  25. 2026-10-2898
  26. 2026-10-2999
  27. 2026-10-30100
  28. 2026-11-01104
Rating
unchanged since 01.09
reviewsrating 5.00 · 28 readings
  1. 2026-09-01reviews4rating5.00
  2. 2026-09-05reviews4rating5.00
  3. 2026-09-06reviews4rating5.00
  4. 2026-09-08reviews4rating5.00
  5. 2026-09-10reviews4rating5.00
  6. 2026-09-13reviews4rating5.00
  7. 2026-09-15reviews4rating5.00
  8. 2026-09-17reviews4rating5.00
  9. 2026-09-25reviews4rating5.00
  10. 2026-09-26reviews4rating5.00
  11. 2026-09-28reviews4rating5.00
  12. 2026-10-05reviews4rating5.00
  13. 2026-10-08reviews4rating5.00
  14. 2026-10-09reviews4rating5.00
  15. 2026-10-10reviews4rating5.00
  16. 2026-10-13reviews4rating5.00
  17. 2026-10-16reviews4rating5.00
  18. 2026-10-17reviews4rating5.00
  19. 2026-10-18reviews4rating5.00
  20. 2026-10-19reviews4rating5.00
  21. 2026-10-21reviews4rating5.00
  22. 2026-10-22reviews4rating5.00
  23. 2026-10-24reviews4rating5.00
  24. 2026-10-25reviews4rating5.00
  25. 2026-10-28reviews4rating5.00
  26. 2026-10-29reviews4rating5.00
  27. 2026-10-30reviews4rating5.00
  28. 2026-11-01reviews4rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://www.costco.com/*
  • See the address and title of every tab you have open tabs
  • Watch the network requests your browser makes webRequest
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
Show the remaining 3
  • Run its own code on the pages it can access scripting
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

DB Webstore Extensions publishes 3 listings we track, 309 users between them.

  1. Slack Controls DB Webstore Extensions · Productivity · Workflow · published 2022-11-16 149 users
  2. Jira Story Points in Kanban Swimlanes DB Webstore Extensions · Productivity · Workflow · published 2023-02-06 56 users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. Droply: Costco Price Adjustment Tracker Describes nearly the same job, smaller audience 42 users
  2. CostCash Describes nearly the same job, smaller audience 5 users
  3. Costco Saver Describes nearly the same job, smaller audience 75 users ★ 3.0
  4. Deals Extractor Describes nearly the same job, smaller audience 3 users
  5. Costco Receipt Insights: Spending Tracker & Price Adjustments Describes nearly the same job, smaller audience 4 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/fladelenhmmmicdplahmeljembbneenp/badge.svg)](https://extops.dev/extensions/fladelenhmmmicdplahmeljembbneenp)

HTML

<a href="https://extops.dev/extensions/fladelenhmmmicdplahmeljembbneenp"><img src="https://extops.dev/extensions/fladelenhmmmicdplahmeljembbneenp/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built