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PowerSchool Grade Calculator

Chrome extension by nhellyer6 · Productivity · Education

A Chrome extension in Productivity · Education with 394 users, barely installed.

Specific sites only: 5 match patterns.

What the developer says, and 5 screenshots

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

Users
394
Rating
5.0 (1 ratings)
Users, last 15 days
+51
Rating, last 30 days
Not watched long enough to say
Version
5.3.0
Updated in the store
2026-08-31
Published
2025-04-26
Manifest
V3
Browser access
3 permissions, 5 site patterns

How it has moved

Users
+51 since 01.09
343-394 · 9 readings
  1. 2026-09-01343
  2. 2026-09-03348
  3. 2026-09-04374
  4. 2026-09-05379
  5. 2026-09-07377
  6. 2026-09-08379
  7. 2026-09-09389
  8. 2026-09-13390
  9. 2026-09-15394
Rating
unchanged since 01.09
reviewsrating 5.00 · 9 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-09reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
Users
+51 since 01.09
343-394 · 9 readings
  1. 2026-09-01343
  2. 2026-09-03348
  3. 2026-09-04374
  4. 2026-09-05379
  5. 2026-09-07377
  6. 2026-09-08379
  7. 2026-09-09389
  8. 2026-09-13390
  9. 2026-09-15394
Rating
unchanged since 01.09
reviewsrating 5.00 · 9 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-09reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00

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

Specific sites only: 5 match patterns.

  • *://*.powerschool.com/*
  • https://picsum.photos/*
  • https://fastly.picsum.photos/*
Show the remaining 2
  • https://oembed.unsplash.com/*
  • https://images.unsplash.com/*
  • 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

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

nhellyer6 publishes 6 listings we track, 2k users between them. Listed website: gradecalculatorextension.com.

  1. Web Code Extractor – HTML, CSS & JavaScript Grabber nhellyer6 · Productivity · Developer · published 2026-03-24 1k users
  2. GTA 5 Mission Passed: Respect+ Email Edition nhellyer6 · Lifestyle · Fun · published 2025-11-24 121 users ★ 3.0
  3. Link Auto Cleaner nhellyer6 · Make Chrome Yours · Privacy · published 2026-08-21 41 users (last published figure)
Show 2 more from this publisher
  1. MS360 SkuVault nhellyer6 · Productivity · Workflow · published 2026-08-14 16 users
  2. Fare Scout nhellyer6 · Productivity · Tools · published 2026-03-23 8 users

Like this one

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

  1. Focus What-If Grade Calculator Describes nearly the same job, smaller audience 30 users
  2. Aeries Grade Calculator Describes nearly the same job, smaller audience 394 users ★ 5.0
  3. The MDCPS Grade Forecaster Describes nearly the same job, smaller audience 24 users
  4. Gradescope Grade Calculator Describes nearly the same job, smaller audience 50 users ★ 5.0
  5. Grade Grub Describes nearly the same job, smaller audience 7 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.