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Chrome extension by kmrerr.kmrerr · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 7 users, barely installed. Audience over the last 30 days: +1.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

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

Users
7
Rating
not rated yet
Users, last 30 days
+1
Version
1.2
Updated in the store
2025-10-27
Published
2025-10-24
Manifest
V3
Browser access
1 permission, 1 site pattern

How it has moved

Users
+1 since 03.10
5-7 · 13 readings
  1. 2026-10-097
  2. 2026-10-106
  3. 2026-10-165
  4. 2026-10-186
  5. 2026-10-195
  6. 2026-10-216
  7. 2026-10-225
  8. 2026-10-246
  9. 2026-10-255
  10. 2026-10-286
  11. 2026-10-307
  12. 2026-11-016
  13. 2026-11-027
Users
+1 since 31.08
5-7 · 25 readings
  1. 2026-08-316
  2. 2026-09-037
  3. 2026-09-046
  4. 2026-09-067
  5. 2026-09-076
  6. 2026-09-087
  7. 2026-09-105
  8. 2026-09-136
  9. 2026-09-157
  10. 2026-09-226
  11. 2026-09-277
  12. 2026-09-286
  13. 2026-10-097
  14. 2026-10-106
  15. 2026-10-165
  16. 2026-10-186
  17. 2026-10-195
  18. 2026-10-216
  19. 2026-10-225
  20. 2026-10-246
  21. 2026-10-255
  22. 2026-10-286
  23. 2026-10-307
  24. 2026-11-016
  25. 2026-11-027

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://app.rakuten.co.jp/*
  • 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

kmrerr.kmrerr.

Like this one

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

  1. Simple Rakuten Describes nearly the same job, smaller audience 3 users
  2. Rakuten Safety Guard PRO Describes nearly the same job, smaller audience 13 users
  3. Sukkiri（すっきり） Describes nearly the same job, smaller audience 8 users
  4. 自動価格比較／ショッピング検索（Auto Price Checker） Describes nearly the same job, with an established audience 20k users ★ 3.6
  5. 価格比較・最安値チェック | Amazon 楽天 Yahoo!ショッピング - カカクロ Describes nearly the same job, smaller audience 157 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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Users and rating on Ext Ops Panel

Markdown

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

HTML

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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.

Where the data comes from: how the catalog is built