Ext Ops Panel
Open the app

Grade Calc

Chrome Web Store listing by RGB Studios

A Chrome extension with 0 users, no reported installs.

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

What the developer says, and 2 screenshots

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

Users
not published (the store states no audience for this listing)
Rating
3.0 (1 ratings)
Users, last 18 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.0.0 stable
Updated in the store
2019-01-18
Published
2019-01-18
Manifest
V2
Browser access
2 permissions

How it has moved

Users
unchanged since 31.08
0 · 2 readings
  1. 2026-08-310
  2. 2026-09-170
Rating
unchanged since 31.08
reviewsrating 3.00 · 2 readings
  1. 2026-08-31reviews1rating3.00
  2. 2026-09-17reviews1rating3.00
Users
unchanged since 31.08
0 · 2 readings
  1. 2026-08-310
  2. 2026-09-170
Rating
unchanged since 31.08
reviewsrating 3.00 · 2 readings
  1. 2026-08-31reviews1rating3.00
  2. 2026-09-17reviews1rating3.00

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

RGB Studios publishes 14 listings we track, 110k users between them. Listed website: rgbstudios.org.

  1. Chrome Notes RGB Studios · Productivity · Workflow · published 2017-06-09 100k users ★ 4.4
  2. Chrome Dice RGB Studios · Lifestyle · Games · published 2020-04-28 5k users ★ 4.8
  3. Oceanic - Sabine's Themes RGB Studios · published 2016-06-09 1k users ★ 4.2
Show 5 more from this publisher
  1. Desktop Clock Mini RGB Studios · Productivity · Workflow · published 2018-07-15 1k users ★ 5.0
  2. Simple Kirby Theme RGB Studios · published 2016-07-27 1k users ★ 4.7
  3. Copylink RGB Studios · Productivity · Workflow · published 2017-07-13 703 users ★ 4.2
  4. MTG Forest Theme RGB Studios · published 2015-06-12 565 users ★ 3.5
  5. Cookie Monster Theme RGB Studios · published 2016-07-29 174 users ★ 3.1

Like this one

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

  1. A+ Buddy Describes nearly the same job, smaller audience 8 users ★ 5.0
  2. Google Classroom Grade Calculator | GCGC Describes nearly the same job, smaller audience 68 users ★ 5.0
  3. Gradescope Grade Calculator Describes nearly the same job, smaller audience 495 users ★ 5.0
  4. GradeBac - ManageBac Grade Calculator Describes nearly the same job, smaller audience 1k users ★ 4.4
  5. SBGBook Grade Calculator Describes nearly the same job, smaller audience 15 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.