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Cartology

Chrome extension by Cartology · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 163 users, barely installed. Audience over the last 30 days: +6.

Specific sites only: 2 match patterns.

What the developer says about it

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

Users
163
Rating
5.0 (2 ratings)
Users, last 30 days
+6
Rating, last 30 days
Steady over 30 days
Version
1.16.0
Updated in the store
2026-01-20
Published
2025-12-24
Manifest
V3
Browser access
3 permissions, 2 site patterns

How it has moved

Users
+6 since 02.10
148-163 · 15 readings
  1. 2026-10-08149
  2. 2026-10-09151
  3. 2026-10-10148
  4. 2026-10-13149
  5. 2026-10-16151
  6. 2026-10-17154
  7. 2026-10-19156
  8. 2026-10-22158
  9. 2026-10-23163
  10. 2026-10-24161
  11. 2026-10-25159
  12. 2026-10-27162
  13. 2026-10-29158
  14. 2026-10-31163
  15. 2026-11-01163
Rating
unchanged since 02.10
reviewsrating 5.00 · 15 readings
  1. 2026-10-08reviews2rating5.00
  2. 2026-10-09reviews2rating5.00
  3. 2026-10-10reviews2rating5.00
  4. 2026-10-13reviews2rating5.00
  5. 2026-10-16reviews2rating5.00
  6. 2026-10-17reviews2rating5.00
  7. 2026-10-19reviews2rating5.00
  8. 2026-10-22reviews2rating5.00
  9. 2026-10-23reviews2rating5.00
  10. 2026-10-24reviews2rating5.00
  11. 2026-10-25reviews2rating5.00
  12. 2026-10-27reviews2rating5.00
  13. 2026-10-29reviews2rating5.00
  14. 2026-10-31reviews2rating5.00
  15. 2026-11-01reviews2rating5.00
Users
+4 since 31.08
148-163 · 27 readings
  1. 2026-08-31159
  2. 2026-09-02160
  3. 2026-09-05157
  4. 2026-09-07158
  5. 2026-09-08160
  6. 2026-09-10158
  7. 2026-09-13159
  8. 2026-09-15156
  9. 2026-09-16152
  10. 2026-09-21156
  11. 2026-09-25161
  12. 2026-09-26157
  13. 2026-10-08149
  14. 2026-10-09151
  15. 2026-10-10148
  16. 2026-10-13149
  17. 2026-10-16151
  18. 2026-10-17154
  19. 2026-10-19156
  20. 2026-10-22158
  21. 2026-10-23163
  22. 2026-10-24161
  23. 2026-10-25159
  24. 2026-10-27162
  25. 2026-10-29158
  26. 2026-10-31163
  27. 2026-11-01163
Rating
unchanged since 31.08
reviewsrating 5.00 · 27 readings
  1. 2026-08-31reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-05reviews2rating5.00
  4. 2026-09-07reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-10reviews2rating5.00
  7. 2026-09-13reviews2rating5.00
  8. 2026-09-15reviews2rating5.00
  9. 2026-09-16reviews2rating5.00
  10. 2026-09-21reviews2rating5.00
  11. 2026-09-25reviews2rating5.00
  12. 2026-09-26reviews2rating5.00
  13. 2026-10-08reviews2rating5.00
  14. 2026-10-09reviews2rating5.00
  15. 2026-10-10reviews2rating5.00
  16. 2026-10-13reviews2rating5.00
  17. 2026-10-16reviews2rating5.00
  18. 2026-10-17reviews2rating5.00
  19. 2026-10-19reviews2rating5.00
  20. 2026-10-22reviews2rating5.00
  21. 2026-10-23reviews2rating5.00
  22. 2026-10-24reviews2rating5.00
  23. 2026-10-25reviews2rating5.00
  24. 2026-10-27reviews2rating5.00
  25. 2026-10-29reviews2rating5.00
  26. 2026-10-31reviews2rating5.00
  27. 2026-11-01reviews2rating5.00

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: 2 match patterns.

  • https://*.costco.com/*
  • https://*.costco.ca/*
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

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

The publisher

Cartology.

Like this one

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

  1. Costco Receipt Insights: Spending Tracker & Price Adjustments Describes nearly the same job, smaller audience 4 users
  2. My Receipt Pro Describes nearly the same job, smaller audience 34 users
  3. WarehouseMeals Describes nearly the same job, smaller audience 3 users
  4. Costcoholic Describes nearly the same job, smaller audience 107 users
  5. ShelfSense Describes nearly the same job, smaller audience 5 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/pkdiffobnimclgmihijpkgfekfbdhgda/badge.svg)](https://extops.dev/extensions/pkdiffobnimclgmihijpkgfekfbdhgda)

HTML

<a href="https://extops.dev/extensions/pkdiffobnimclgmihijpkgfekfbdhgda"><img src="https://extops.dev/extensions/pkdiffobnimclgmihijpkgfekfbdhgda/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 2026-10-31. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built