Ext Ops Panel
Open dashboard

Perk Chess

Chrome extension by prefabcode · Lifestyle · Fun

A Chrome extension in Lifestyle · Fun with 144 users, barely installed. Audience over the last 30 days: -4.

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

What the developer says, and 3 screenshots

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

Users
144
Rating
4.0 (3 ratings)
Users, last 30 days
-4
Rating, last 30 days
Steady over 30 days
Version
2.0.4
Updated in the store
2026-10-05
Published
2024-10-02
Manifest
V3
Browser access
3 permissions

How it has moved

Users
-4 since 04.10
136-148 · 14 readings
  1. 2026-10-04148
  2. 2026-10-08145
  3. 2026-10-09143
  4. 2026-10-10139
  5. 2026-10-13138
  6. 2026-10-16139
  7. 2026-10-18140
  8. 2026-10-19139
  9. 2026-10-21137
  10. 2026-10-23136
  11. 2026-10-24146
  12. 2026-10-29145
  13. 2026-11-01144
  14. 2026-11-03144
Rating
unchanged since 04.10
reviewsrating 4.00 · 14 readings
  1. 2026-10-04reviews3rating4.00
  2. 2026-10-08reviews3rating4.00
  3. 2026-10-09reviews3rating4.00
  4. 2026-10-10reviews3rating4.00
  5. 2026-10-13reviews3rating4.00
  6. 2026-10-16reviews3rating4.00
  7. 2026-10-18reviews3rating4.00
  8. 2026-10-19reviews3rating4.00
  9. 2026-10-21reviews3rating4.00
  10. 2026-10-23reviews3rating4.00
  11. 2026-10-24reviews3rating4.00
  12. 2026-10-29reviews3rating4.00
  13. 2026-11-01reviews3rating4.00
  14. 2026-11-03reviews3rating4.00
Users
+10 since 31.08
134-148 · 26 readings
2026-09-09: released 2.0.4
  1. 2026-08-31134
  2. 2026-09-02135
  3. 2026-09-05136
  4. 2026-09-07137
  5. 2026-09-08142
  6. 2026-09-10146
  7. 2026-09-15148
  8. 2026-09-17144
  9. 2026-09-20146
  10. 2026-09-21148
  11. 2026-09-25146
  12. 2026-09-28142
  13. 2026-10-04148
  14. 2026-10-08145
  15. 2026-10-09143
  16. 2026-10-10139
  17. 2026-10-13138
  18. 2026-10-16139
  19. 2026-10-18140
  20. 2026-10-19139
  21. 2026-10-21137
  22. 2026-10-23136
  23. 2026-10-24146
  24. 2026-10-29145
  25. 2026-11-01144
  26. 2026-11-03144
Rating
unchanged since 31.08
reviewsrating 4.00 · 26 readings
2026-09-09: released 2.0.4
  1. 2026-08-31reviews3rating4.00
  2. 2026-09-02reviews3rating4.00
  3. 2026-09-05reviews3rating4.00
  4. 2026-09-07reviews3rating4.00
  5. 2026-09-08reviews3rating4.00
  6. 2026-09-10reviews3rating4.00
  7. 2026-09-15reviews3rating4.00
  8. 2026-09-17reviews3rating4.00
  9. 2026-09-20reviews3rating4.00
  10. 2026-09-21reviews3rating4.00
  11. 2026-09-25reviews3rating4.00
  12. 2026-09-28reviews3rating4.00
  13. 2026-10-04reviews3rating4.00
  14. 2026-10-08reviews3rating4.00
  15. 2026-10-09reviews3rating4.00
  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. 2026-10-23reviews3rating4.00
  23. 2026-10-24reviews3rating4.00
  24. 2026-10-29reviews3rating4.00
  25. 2026-11-01reviews3rating4.00
  26. 2026-11-03reviews3rating4.00

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.

  • Run its own code on the pages it can access scripting
  • 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

Version history

  1. Version 2.0.4

What changed recently

  1. Package size changed
  2. Store description rewritten
  3. Released version 2.0.4 (was 2.0.03)

The publisher

prefabcode.

Like this one

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

  1. LeetChess Describes nearly the same job, smaller audience 34 users ★ 3.7
  2. Chess Warriors: Play Chess, Become a Warrior Describes nearly the same job, smaller audience 63 users ★ 5.0
  3. Chess Blocker Describes nearly the same job, smaller audience 53 users ★ 5.0
  4. ChessPause: Play Less, Win More Describes nearly the same job, smaller audience 3 users
  5. Better Chess: Chess.com & Lichess Enhancer Describes nearly the same job, smaller audience 21 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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

Connect it in a minute See what the panel does
Add a badge to your README or site

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

HTML

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