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ChartBuy — 90-Day Price History & Promo Code Finder

Chrome extension by CouSpi · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 3 users, barely installed.

Specific sites only: 3 match patterns.

What the developer says, and 3 screenshots

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

Users
3
Rating
not rated yet
Users, last 8 days
+3
Version
2.0.0
Updated in the store
2026-11-02
Published
2026-10-26
Manifest
V3
Browser access
2 permissions, 3 site patterns

How it has moved

Users
+3 since 27.10
0-3 · 5 readings
2026-10-27: appeared in the store
  1. 2026-10-270appeared in the store
  2. 2026-10-281
  3. 2026-10-292
  4. 2026-11-013
  5. 2026-11-033
Users
+3 since 27.10
0-3 · 5 readings
2026-10-27: appeared in the store
  1. 2026-10-270appeared in the store
  2. 2026-10-281
  3. 2026-10-292
  4. 2026-11-013
  5. 2026-11-033

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: 3 match patterns.

  • https://*.aliexpress.com/*
  • https://*.aliexpress.us/*
  • https://www.chartbuy.com/*
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

What changed recently

  1. Store description rewritten
  2. Appeared in the store

The publisher

CouSpi publishes 5 listings we track, 219 users between them. Listed website: chartbuy.com.

  1. 쿠스피 - 쿠팡 가격 추적기 CouSpi · Lifestyle · Shopping · published 2025-12-03 186 users
  2. MaumEmoji Mate - Smart Emoji Styler & Picker CouSpi · Productivity · Tools · published 2026-06-27 14 users
  3. Maumdive Connect CouSpi · Productivity · Communication · published 2026-06-27 8 users
Show 1 more from this publisher
  1. 마음데이타 비즈니스 & 기업조회 비서 CouSpi · Productivity · Tools · published 2026-06-29 8 users

Like this one

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

  1. InstaShop – Price Tracker & History for AliExpress Describes nearly the same job, smaller audience 5 users
  2. PriceProven — AliExpress Price Tracker Describes nearly the same job, smaller audience 914 users ★ 5.0
  3. AliExpert Shopping Assistant Describes nearly the same job, with an established audience 10k users ★ 4.6
  4. AiPrice(AliPrice) Price Tracker Describes nearly the same job, with a large installed audience 100k users ★ 4.8
  5. PriceRadar — Price Tracker & History Describes nearly the same job, smaller audience 12 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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Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/efgndmjnmhjaloochfjofddcnaednccm"><img src="https://extops.dev/extensions/efgndmjnmhjaloochfjofddcnaednccm/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