Ext Ops Panel
Open the app

Zero Noise Classroom

Chrome Web Store listing by Manuel Llorens

A Chrome extension with 40 000 users, an established extension.

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
40 000
Rating
4.4 (23 ratings)
Users, last 19 days
+20k
Rating, last 30 days
Not watched long enough to say
Version
0.2.9
Updated in the store
2016-05-09
Published
2015-02-17
Manifest
V2
Browser access
6 permissions

How it has moved

Users
+20k since 31.08
20k-40k · 4 readings
  1. 2026-08-3120k
  2. 2026-09-0230k
  3. 2026-09-1740k
  4. 2026-09-1840k
Rating
unchanged since 31.08
reviewsrating 4.39 · 4 readings
  1. 2026-08-31reviews23rating4.39
  2. 2026-09-02reviews23rating4.39
  3. 2026-09-17reviews23rating4.39
  4. 2026-09-18reviews23rating4.39
Users
+20k since 31.08
20k-40k · 4 readings
  1. 2026-08-3120k
  2. 2026-09-0230k
  3. 2026-09-1740k
  4. 2026-09-1840k
Rating
unchanged since 31.08
reviewsrating 4.39 · 4 readings
  1. 2026-08-31reviews23rating4.39
  2. 2026-09-02reviews23rating4.39
  3. 2026-09-17reviews23rating4.39
  4. 2026-09-18reviews23rating4.39

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.

  • Declares alwaysOnTopWindows
  • Declares audioCapture
  • Declares fullscreen
Show the remaining 3
  • Declares https://maker.ifttt.com/trigger/*
  • Declares https://www.google-analytics.com/
  • 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

Manuel Llorens publishes 2 listings we track, 40k users between them. Listed website: colegiomontpellier.com.

  1. noteroot Editor Manuel Llorens · published 2016-05-19 33 users ★ 3.0

Like this one

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

  1. Noise Level Monitor Describes nearly the same job, smaller audience 129 users ★ 5.0
  2. Sound Level Meter Describes nearly the same job, smaller audience 3k users ★ 3.7
  3. Sound Meter (Noise & Decibel) Describes nearly the same job, with an established audience 50k users ★ 3.0
  4. Smartnoise - Visual Describes nearly the same job, smaller audience 44 users
  5. Sound Level Meter Describes nearly the same job, smaller audience 1k 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.