Ext Ops Panel
Open the app

Mass and Balance Calculator

Chrome extension by teneraphael · Productivity · Tools

A Chrome extension in Productivity · Tools with 137 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 1 screenshot

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

Users
137
Rating
not rated yet
Users, last 16 days
+10
Version
1.2
Updated in the store
2026-09-08
Published
2024-03-26
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+10 since 01.09
124-137 · 9 readings
2026-09-08: released 1.2
  1. 2026-09-01127
  2. 2026-09-02125
  3. 2026-09-05129
  4. 2026-09-06130
  5. 2026-09-07127
  6. 2026-09-08124released 1.2
  7. 2026-09-10128
  8. 2026-09-13137
  9. 2026-09-16137
Users
+10 since 01.09
124-137 · 9 readings
2026-09-08: released 1.2
  1. 2026-09-01127
  2. 2026-09-02125
  3. 2026-09-05129
  4. 2026-09-06130
  5. 2026-09-07127
  6. 2026-09-08124released 1.2
  7. 2026-09-10128
  8. 2026-09-13137
  9. 2026-09-16137

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.

  • Put data on your clipboard clipboardWrite
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.2 · Asked for more permissions (2, was 1)

What changed recently

  1. Package size changed
  2. Asked for more permissions (2, was 1)
  3. Store description rewritten (49 → 73 characters)
Show the remaining 1
  1. Released version 1.2 (was 1.1)

The publisher

teneraphael.

Like this one

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

  1. Teal DIM Weight & Box Size Calculator Describes nearly the same job, smaller audience 3 users (last published figure)
  2. RC heli head speed calculator Describes nearly the same job, smaller audience 8 users ★ 5.0
  3. Carbone des materiaux Describes nearly the same job, smaller audience 3 users
  4. Calculator For Engineers Describes nearly the same job, smaller audience 6 users
  5. TDL Fleet - Load Profit Calculator Describes nearly the same job, smaller audience 4 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.

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.