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Montville GPA Calculator

Chrome extension by TBJ1412z · Productivity · Education

A Chrome extension in Productivity · Education with 10 users, barely installed. Audience over the last 30 days: +3.

Specific sites only: 2 match patterns.

What the developer says, and 1 screenshot

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

Users
10
Rating
not rated yet
Users, last 30 days
+3
Version
6.0.0
Updated in the store
2025-08-26
Published
2025-08-26
Manifest
V3
Browser access
3 permissions, 2 site patterns

How it has moved

Users
+3 since 02.10
7-11 · 10 readings
  1. 2026-10-098
  2. 2026-10-107
  3. 2026-10-169
  4. 2026-10-189
  5. 2026-10-2110
  6. 2026-10-229
  7. 2026-10-2311
  8. 2026-10-2410
  9. 2026-10-2911
  10. 2026-11-0110
Users
+3 since 01.09
7-11 · 22 readings
  1. 2026-09-017
  2. 2026-09-038
  3. 2026-09-057
  4. 2026-09-067
  5. 2026-09-088
  6. 2026-09-097
  7. 2026-09-158
  8. 2026-09-167
  9. 2026-09-208
  10. 2026-09-217
  11. 2026-09-268
  12. 2026-09-287
  13. 2026-10-098
  14. 2026-10-107
  15. 2026-10-169
  16. 2026-10-189
  17. 2026-10-2110
  18. 2026-10-229
  19. 2026-10-2311
  20. 2026-10-2410
  21. 2026-10-2911
  22. 2026-11-0110

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: 2 match patterns.

  • https://parents.montville.net/*
  • https://parents.genesisedu.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

TBJ1412z.

Like this one

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

  1. Montville GPA Calculator Describes nearly the same job, smaller audience 1k users ★ 4.1
  2. Demarest GPA Calculator Describes nearly the same job, smaller audience 642 users ★ 5.0
  3. Better BCA GPA Describes nearly the same job, smaller audience 1k users ★ 5.0
  4. Skyward GPA Calculator Describes nearly the same job, smaller audience 224 users ★ 4.4
  5. Catholic Central GPA Calculator 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.

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Users and rating on Ext Ops Panel

Markdown

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

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