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PowerSchool Grade Calculator

Chrome extension by nhellyer6 · Productivity · Education

  • Established publisher

A Chrome extension in Productivity · Education with 531 users, barely installed. Audience over the last 30 days: +101.

Specific sites only: 7 match patterns.

What the developer says, and 5 screenshots

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

Users
531
Rating
5.0 (1 ratings)
Users, last 30 days
+101
Rating, last 30 days
Steady over 30 days
Version
6.0.0
Updated in the store
2026-09-23
Published
2025-04-26
Manifest
V3
Browser access
3 permissions, 7 site patterns

How it has moved

Users
+101 since 02.10
416-531 · 20 readings
  1. 2026-10-04416
  2. 2026-10-08425
  3. 2026-10-09424
  4. 2026-10-10428
  5. 2026-10-11437
  6. 2026-10-13439
  7. 2026-10-16446
  8. 2026-10-18437
  9. 2026-10-19439
  10. 2026-10-20442
  11. 2026-10-21453
  12. 2026-10-22467
  13. 2026-10-23477
  14. 2026-10-24483
  15. 2026-10-25489
  16. 2026-10-26488
  17. 2026-10-28507
  18. 2026-10-29511
  19. 2026-10-30527
  20. 2026-11-01531
Rating
unchanged since 02.10
reviewsrating 5.00 · 20 readings
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-11reviews1rating5.00
  6. 2026-10-13reviews1rating5.00
  7. 2026-10-16reviews1rating5.00
  8. 2026-10-18reviews1rating5.00
  9. 2026-10-19reviews1rating5.00
  10. 2026-10-20reviews1rating5.00
  11. 2026-10-21reviews1rating5.00
  12. 2026-10-22reviews1rating5.00
  13. 2026-10-23reviews1rating5.00
  14. 2026-10-24reviews1rating5.00
  15. 2026-10-25reviews1rating5.00
  16. 2026-10-26reviews1rating5.00
  17. 2026-10-28reviews1rating5.00
  18. 2026-10-29reviews1rating5.00
  19. 2026-10-30reviews1rating5.00
  20. 2026-11-01reviews1rating5.00
Users
+188 since 01.09
343-531 · 35 readings
2026-09-24: released 6.0.0
  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
  10. 2026-09-17409
  11. 2026-09-20403
  12. 2026-09-22406
  13. 2026-09-25421
  14. 2026-09-26425
  15. 2026-09-28430
  16. 2026-10-04416
  17. 2026-10-08425
  18. 2026-10-09424
  19. 2026-10-10428
  20. 2026-10-11437
  21. 2026-10-13439
  22. 2026-10-16446
  23. 2026-10-18437
  24. 2026-10-19439
  25. 2026-10-20442
  26. 2026-10-21453
  27. 2026-10-22467
  28. 2026-10-23477
  29. 2026-10-24483
  30. 2026-10-25489
  31. 2026-10-26488
  32. 2026-10-28507
  33. 2026-10-29511
  34. 2026-10-30527
  35. 2026-11-01531
Rating
unchanged since 01.09
reviewsrating 5.00 · 35 readings
2026-09-24: released 6.0.0
  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
  10. 2026-09-17reviews1rating5.00
  11. 2026-09-20reviews1rating5.00
  12. 2026-09-22reviews1rating5.00
  13. 2026-09-25reviews1rating5.00
  14. 2026-09-26reviews1rating5.00
  15. 2026-09-28reviews1rating5.00
  16. 2026-10-04reviews1rating5.00
  17. 2026-10-08reviews1rating5.00
  18. 2026-10-09reviews1rating5.00
  19. 2026-10-10reviews1rating5.00
  20. 2026-10-11reviews1rating5.00
  21. 2026-10-13reviews1rating5.00
  22. 2026-10-16reviews1rating5.00
  23. 2026-10-18reviews1rating5.00
  24. 2026-10-19reviews1rating5.00
  25. 2026-10-20reviews1rating5.00
  26. 2026-10-21reviews1rating5.00
  27. 2026-10-22reviews1rating5.00
  28. 2026-10-23reviews1rating5.00
  29. 2026-10-24reviews1rating5.00
  30. 2026-10-25reviews1rating5.00
  31. 2026-10-26reviews1rating5.00
  32. 2026-10-28reviews1rating5.00
  33. 2026-10-29reviews1rating5.00
  34. 2026-10-30reviews1rating5.00
  35. 2026-11-01reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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: 7 match patterns.

  • *://*.powerschool.com/*
  • https://picsum.photos/*
  • https://fastly.picsum.photos/*
Show the remaining 4
  • https://oembed.unsplash.com/*
  • https://images.unsplash.com/*
  • https://fonts.googleapis.com/*
  • https://fonts.gstatic.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

Version history

  1. Version 6.0.0 · Asked for more permissions (10, was 8)

What changed recently

  1. Now requires Chrome 111
  2. Package size changed
  3. Asked for more permissions (10, was 8)
Show the remaining 1
  1. Released version 6.0.0 (was 5.3.0)

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 2025-11-24 117 users ★ 3.0
  3. MS360 SkuVault nhellyer6 · Productivity · Workflow · published 2026-08-14 21 users
Show 2 more from this publisher
  1. Link Auto Cleaner nhellyer6 · Make Chrome Yours · Privacy · published 2026-08-21 15 users
  2. Fare Scout nhellyer6 · Productivity · Tools · published 2026-03-23 5 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 45 users
  2. Aeries Grade Calculator Describes nearly the same job, smaller audience 455 users ★ 5.0
  3. The MDCPS Grade Forecaster Describes nearly the same job, smaller audience 26 users
  4. Gradescope Grade Calculator Describes nearly the same job, smaller audience 53 users ★ 5.0
  5. PowerSchool GPA Lab Describes nearly the same job, smaller audience 26 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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/cijpahdpdafenfhhlkigibdfkgddnbga/badge.svg)](https://extops.dev/extensions/cijpahdpdafenfhhlkigibdfkgddnbga)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built