Droply: Costco Price Adjustment Tracker
Chrome extension by FullMail · Lifestyle · Shopping
A Chrome extension in Lifestyle · Shopping with 44 users, barely installed. Audience over the last 30 days: +5.
Specific sites only: 1 match pattern.
What the developer says, and 4 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 44
- Users, last 30 days
- +5
- Version
- 1.0.0
- Updated in the store
- 2025-11-21
- Published
- 2025-11-21
- Manifest
- V3
- Browser access
- 6 permissions, 1 site pattern
How it has moved
- 2026-10-0546
- 2026-10-1042
- 2026-10-1339
- 2026-10-1636
- 2026-10-1838
- 2026-10-2040
- 2026-10-2141
- 2026-10-2443
- 2026-10-2542
- 2026-10-2641
- 2026-10-3042
- 2026-11-0244
- 2026-11-0344
- 2026-09-0147
- 2026-09-0648
- 2026-09-0749
- 2026-09-1046
- 2026-09-1343
- 2026-09-1540
- 2026-09-1738
- 2026-09-2142
- 2026-09-2241
- 2026-09-2539
- 2026-09-2740
- 2026-09-2839
- 2026-10-0546
- 2026-10-1042
- 2026-10-1339
- 2026-10-1636
- 2026-10-1838
- 2026-10-2040
- 2026-10-2141
- 2026-10-2443
- 2026-10-2542
- 2026-10-2641
- 2026-10-3042
- 2026-11-0244
- 2026-11-0344
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 -
Sign you in with a Google account
identity -
Act on the current tab, but only after you click it
activeTab
Show the remaining 3
-
Schedule work to run later
alarms -
Show you notifications
notifications -
Store data in your browser
storage
What changed recently
Nothing has moved on this listing since we started watching it.
The publisher
FullMail publishes 2 listings we track, 67 users between them.
Like this one
Listings the catalog judges closest in what they say they do.
-
Costco Price Adjuster 104 users
-
Costco Saver 75 users
-
CostCash 6 users
-
Buck Fifty – Receipt & Price Tracker 3 users
-
PricePiq 3 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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[](https://extops.dev/extensions/cjmpliobpmdmogiboeibolaamfenhbmb)<a href="https://extops.dev/extensions/cjmpliobpmdmogiboeibolaamfenhbmb"><img src="https://extops.dev/extensions/cjmpliobpmdmogiboeibolaamfenhbmb/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 2026-11-02. We publish no contact details for extension developers.