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DealMonitor

Chrome extension by KasparRobert · Lifestyle · Shopping

  • Established publisher

A Chrome extension in Lifestyle · Shopping with 146 users, barely installed. Audience over the last 30 days: +10.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
146
Rating
4.0 (3 ratings)
Users, last 30 days
+10
Rating, last 30 days
Steady over 30 days
Version
0.13.322
Updated in the store
2026-08-08
Published
2025-11-10
Manifest
V3
Browser access
5 permissions, 2 site patterns

How it has moved

Users
+10 since 30.09
136-152 · 14 readings
  1. 2026-10-04138
  2. 2026-10-08140
  3. 2026-10-10147
  4. 2026-10-13152
  5. 2026-10-16140
  6. 2026-10-18141
  7. 2026-10-19143
  8. 2026-10-21146
  9. 2026-10-22145
  10. 2026-10-23148
  11. 2026-10-24147
  12. 2026-10-25151
  13. 2026-10-29146
  14. 2026-10-30146
Rating
unchanged since 30.09
reviewsrating 4.00 · 14 readings
  1. 2026-10-04reviews3rating4.00
  2. 2026-10-08reviews3rating4.00
  3. 2026-10-10reviews3rating4.00
  4. 2026-10-13reviews3rating4.00
  5. 2026-10-16reviews3rating4.00
  6. 2026-10-18reviews3rating4.00
  7. 2026-10-19reviews3rating4.00
  8. 2026-10-21reviews3rating4.00
  9. 2026-10-22reviews3rating4.00
  10. 2026-10-23reviews3rating4.00
  11. 2026-10-24reviews3rating4.00
  12. 2026-10-25reviews3rating4.00
  13. 2026-10-29reviews3rating4.00
  14. 2026-10-30reviews3rating4.00
Users
+25 since 01.09
116-152 · 27 readings
  1. 2026-09-01121
  2. 2026-09-02125
  3. 2026-09-04122
  4. 2026-09-07119
  5. 2026-09-09116
  6. 2026-09-10117
  7. 2026-09-13126
  8. 2026-09-15130
  9. 2026-09-17138
  10. 2026-09-21129
  11. 2026-09-25130
  12. 2026-09-27137
  13. 2026-09-28136
  14. 2026-10-04138
  15. 2026-10-08140
  16. 2026-10-10147
  17. 2026-10-13152
  18. 2026-10-16140
  19. 2026-10-18141
  20. 2026-10-19143
  21. 2026-10-21146
  22. 2026-10-22145
  23. 2026-10-23148
  24. 2026-10-24147
  25. 2026-10-25151
  26. 2026-10-29146
  27. 2026-10-30146
Rating
unchanged since 01.09
reviewsrating 4.00 · 27 readings
  1. 2026-09-01reviews2rating4.00
  2. 2026-09-02reviews2rating4.00
  3. 2026-09-04reviews3rating4.00
  4. 2026-09-07reviews3rating4.00
  5. 2026-09-09reviews3rating4.00
  6. 2026-09-10reviews3rating4.00
  7. 2026-09-13reviews3rating4.00
  8. 2026-09-15reviews3rating4.00
  9. 2026-09-17reviews3rating4.00
  10. 2026-09-21reviews3rating4.00
  11. 2026-09-25reviews3rating4.00
  12. 2026-09-27reviews3rating4.00
  13. 2026-09-28reviews3rating4.00
  14. 2026-10-04reviews3rating4.00
  15. 2026-10-08reviews3rating4.00
  16. 2026-10-10reviews3rating4.00
  17. 2026-10-13reviews3rating4.00
  18. 2026-10-16reviews3rating4.00
  19. 2026-10-18reviews3rating4.00
  20. 2026-10-19reviews3rating4.00
  21. 2026-10-21reviews3rating4.00
  22. 2026-10-22reviews3rating4.00
  23. 2026-10-23reviews3rating4.00
  24. 2026-10-24reviews3rating4.00
  25. 2026-10-25reviews3rating4.00
  26. 2026-10-29reviews3rating4.00
  27. 2026-10-30reviews3rating4.00

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

Every site you visit. This extension can read and change the content of any page you open.

  • Read and change cookies on the sites it can access cookies
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2
  • 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

KasparRobert publishes 2 listings we track, 174 users between them. Listed website: dealmonitor.app.

  1. Tubeless — YouTube without the noise KasparRobert · Productivity · Tools · published 2026-08-04 28 users ★ 5.0

Like this one

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

  1. PriceWatch – Price Tracker & Drop Alerts Describes nearly the same job, smaller audience 24 users ★ 5.0
  2. AlarmBot: Price Tracker & Price Drop Alerts for Amazon, eBay & Any Store Describes nearly the same job, smaller audience 596 users ★ 4.7
  3. WishlistWatcher Describes nearly the same job, smaller audience 3 users
  4. 🏷️Simple Price Alerts - Price alert for Amazon, Aliexpress, eBay, etc. Describes nearly the same job, smaller audience 1k users ★ 4.0
  5. Drippr - Price Tracker Describes nearly the same job, smaller audience 26 users ★ 5.0

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/mgcefcnhjlndjfdenbignocohlpmghac/badge.svg)](https://extops.dev/extensions/mgcefcnhjlndjfdenbignocohlpmghac)

HTML

<a href="https://extops.dev/extensions/mgcefcnhjlndjfdenbignocohlpmghac"><img src="https://extops.dev/extensions/mgcefcnhjlndjfdenbignocohlpmghac/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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built