Ext Ops Panel
Open the app

Guitar Mastery Hub

Chrome extension by Campbell · Lifestyle · Fun

A Chrome extension in Lifestyle · Fun with 43 users, barely installed.

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

What the developer says, and 4 screenshots

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

Users
43
Rating
not rated yet
Users, last 15 days
+43
Version
2.0.1
Updated in the store
2026-03-20
Published
2026-03-17
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+43 since 31.08
0-43 · 5 readings
  1. 2026-08-310
  2. 2026-09-0443
  3. 2026-09-0740
  4. 2026-09-1343
  5. 2026-09-1443
Users
+43 since 31.08
0-43 · 5 readings
  1. 2026-08-310
  2. 2026-09-0443
  3. 2026-09-0740
  4. 2026-09-1343
  5. 2026-09-1443

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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.

  • Manage your downloads downloads
  • Open a panel beside the page sidePanel
  • 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

Campbell publishes 6 listings we track, 212 users between them.

  1. Còcaidh Creamed Campbell · Productivity · Tools · published 2025-11-10 65 users (last published figure)
  2. Highlander Campbell · Productivity · Tools · published 2025-11-08 64 users
  3. Farmyard Chatter Campbell · Productivity · Education · published 2025-11-11 18 users
Show 2 more from this publisher
  1. Farmyard Fusion Campbell · Lifestyle · Entertainment · published 2025-11-13 12 users (last published figure)
  2. Starforger Campbell · Lifestyle · Entertainment · published 2025-11-11 10 users

Like this one

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

  1. Guitar Utilities Describes nearly the same job, smaller audience 17 users ★ 5.0
  2. Guitar Scale Overlay Describes nearly the same job, smaller audience 78 users
  3. Guitar Chord Companion Describes nearly the same job, smaller audience 9 users ★ 5.0
  4. Fretwise — Guitar Chords, Scales & Fretboard Describes nearly the same job, smaller audience 10 users
  5. fret{notes} Describes nearly the same job, smaller audience 526 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.

Is this your extension?

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

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.