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Japan Shopping Assistant!

Chrome extension by quest.4.best.life · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 75 users, barely installed. Audience over the last 30 days: +1.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 6 screenshots

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

Users
75
Rating
3.0 (2 ratings)
Users, last 30 days
+1
Rating, last 30 days
Steady over 30 days
Version
2.2.1
Updated in the store
2026-08-30
Published
2024-05-21
Manifest
V3
Browser access
4 permissions

How it has moved

Users
+1 since 01.10
70-76 · 15 readings
  1. 2026-10-0476
  2. 2026-10-0873
  3. 2026-10-0976
  4. 2026-10-1073
  5. 2026-10-1374
  6. 2026-10-1673
  7. 2026-10-1873
  8. 2026-10-1970
  9. 2026-10-2175
  10. 2026-10-2275
  11. 2026-10-2473
  12. 2026-10-2571
  13. 2026-10-2770
  14. 2026-10-2975
  15. 2026-10-3175
Rating
unchanged since 01.10
reviewsrating 3.00 · 15 readings
  1. 2026-10-04reviews2rating3.00
  2. 2026-10-08reviews2rating3.00
  3. 2026-10-09reviews2rating3.00
  4. 2026-10-10reviews2rating3.00
  5. 2026-10-13reviews2rating3.00
  6. 2026-10-16reviews2rating3.00
  7. 2026-10-18reviews2rating3.00
  8. 2026-10-19reviews2rating3.00
  9. 2026-10-21reviews2rating3.00
  10. 2026-10-22reviews2rating3.00
  11. 2026-10-24reviews2rating3.00
  12. 2026-10-25reviews2rating3.00
  13. 2026-10-27reviews2rating3.00
  14. 2026-10-29reviews2rating3.00
  15. 2026-10-31reviews2rating3.00
Users
-6 since 31.08
70-83 · 26 readings
  1. 2026-08-3181
  2. 2026-09-0583
  3. 2026-09-0782
  4. 2026-09-0880
  5. 2026-09-0975
  6. 2026-09-1371
  7. 2026-09-1572
  8. 2026-09-1775
  9. 2026-09-2178
  10. 2026-09-2676
  11. 2026-09-2874
  12. 2026-10-0476
  13. 2026-10-0873
  14. 2026-10-0976
  15. 2026-10-1073
  16. 2026-10-1374
  17. 2026-10-1673
  18. 2026-10-1873
  19. 2026-10-1970
  20. 2026-10-2175
  21. 2026-10-2275
  22. 2026-10-2473
  23. 2026-10-2571
  24. 2026-10-2770
  25. 2026-10-2975
  26. 2026-10-3175
Rating
unchanged since 31.08
reviewsrating 3.00 · 26 readings
  1. 2026-08-31reviews2rating3.00
  2. 2026-09-05reviews2rating3.00
  3. 2026-09-07reviews2rating3.00
  4. 2026-09-08reviews2rating3.00
  5. 2026-09-09reviews2rating3.00
  6. 2026-09-13reviews2rating3.00
  7. 2026-09-15reviews2rating3.00
  8. 2026-09-17reviews2rating3.00
  9. 2026-09-21reviews2rating3.00
  10. 2026-09-26reviews2rating3.00
  11. 2026-09-28reviews2rating3.00
  12. 2026-10-04reviews2rating3.00
  13. 2026-10-08reviews2rating3.00
  14. 2026-10-09reviews2rating3.00
  15. 2026-10-10reviews2rating3.00
  16. 2026-10-13reviews2rating3.00
  17. 2026-10-16reviews2rating3.00
  18. 2026-10-18reviews2rating3.00
  19. 2026-10-19reviews2rating3.00
  20. 2026-10-21reviews2rating3.00
  21. 2026-10-22reviews2rating3.00
  22. 2026-10-24reviews2rating3.00
  23. 2026-10-25reviews2rating3.00
  24. 2026-10-27reviews2rating3.00
  25. 2026-10-29reviews2rating3.00
  26. 2026-10-31reviews2rating3.00

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Act on the current tab, but only after you click it activeTab
  • Add items to the right-click menu contextMenus
  • Store data in your browser storage
Show the remaining 1
  • Declares windows

The full permission history for this extension

What changed recently

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

The publisher

quest.4.best.life.

Like this one

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

  1. JPSearch Helper Describes nearly the same job, smaller audience 3 users
  2. Rakufun - Coal Stove One-Click Shopping Plugin Describes nearly the same job, smaller audience 15 users
  3. ZenMarket -> Buyee Describes nearly the same job, smaller audience 17 users
  4. Mercari JP Finder Describes nearly the same job, smaller audience 10 users
  5. Mercari Price Checker Describes nearly the same job, smaller audience 7 users (last published figure)

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

HTML

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