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Concrete Calculator

Chrome extension by Mr.windfrog · Productivity · Tools

  • Featured
  • Established publisher

A Chrome extension in Productivity · Tools with 4 users, barely installed. Audience over the last 30 days: -1.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

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

Users
4
Rating
5.0 (1 ratings)
Users, last 30 days
-1
Rating, last 30 days
Steady over 30 days
Version
1.0.3
Updated in the store
2025-11-13
Published
2025-09-09
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
-1 since 02.10
4-8 · 10 readings
  1. 2026-10-096
  2. 2026-10-104
  3. 2026-10-185
  4. 2026-10-194
  5. 2026-10-215
  6. 2026-10-236
  7. 2026-10-248
  8. 2026-10-257
  9. 2026-10-296
  10. 2026-11-014
Rating
unchanged since 02.10
reviewsrating 5.00 · 10 readings
  1. 2026-10-09reviews1rating5.00
  2. 2026-10-10reviews1rating5.00
  3. 2026-10-18reviews1rating5.00
  4. 2026-10-19reviews1rating5.00
  5. 2026-10-21reviews1rating5.00
  6. 2026-10-23reviews1rating5.00
  7. 2026-10-24reviews1rating5.00
  8. 2026-10-25reviews1rating5.00
  9. 2026-10-29reviews1rating5.00
  10. 2026-11-01reviews1rating5.00
Users
-2 since 01.09
0-8 · 21 readings
  1. 2026-09-016
  2. 2026-09-027
  3. 2026-09-040
  4. 2026-09-060
  5. 2026-09-086
  6. 2026-09-105
  7. 2026-09-156
  8. 2026-09-164
  9. 2026-09-205
  10. 2026-09-224
  11. 2026-09-275
  12. 2026-10-096
  13. 2026-10-104
  14. 2026-10-185
  15. 2026-10-194
  16. 2026-10-215
  17. 2026-10-236
  18. 2026-10-248
  19. 2026-10-257
  20. 2026-10-296
  21. 2026-11-014
Rating
unchanged since 01.09
reviewsrating 5.00 · 21 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-15reviews1rating5.00
  8. 2026-09-16reviews1rating5.00
  9. 2026-09-20reviews1rating5.00
  10. 2026-09-22reviews1rating5.00
  11. 2026-09-27reviews1rating5.00
  12. 2026-10-09reviews1rating5.00
  13. 2026-10-10reviews1rating5.00
  14. 2026-10-18reviews1rating5.00
  15. 2026-10-19reviews1rating5.00
  16. 2026-10-21reviews1rating5.00
  17. 2026-10-23reviews1rating5.00
  18. 2026-10-24reviews1rating5.00
  19. 2026-10-25reviews1rating5.00
  20. 2026-10-29reviews1rating5.00
  21. 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: 1 match pattern.

  • https://concretecalculator.org/*
  • 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

Mr.windfrog publishes 19 listings we track, 9k users between them. Listed website: concretecalculator.org.

  1. Granny Unblocked Game Mr.windfrog · Lifestyle · Games · published 2026-05-04 5k users ★ 4.0
  2. Speed Stars Mr.windfrog · Lifestyle · Games · published 2026-05-05 1k users ★ 1.0
  3. FNF Games - Friday Night Funkin' Mr.windfrog · Lifestyle · Games · published 2026-07-01 719 users ★ 5.0
Show 5 more from this publisher
  1. Block Blast Mr.windfrog · Lifestyle · Games · published 2026-02-12 375 users
  2. Wordle Unlimited - Wordles.org Mr.windfrog · Lifestyle · Games · published 2025-11-09 351 users ★ 5.0
  3. Basketball Bros Mr.windfrog · Lifestyle · Games · published 2026-05-05 301 users ★ 5.0
  4. Space Waves Unblocked Mr.windfrog · Lifestyle · Games · published 2026-06-29 292 users
  5. Baseball Bros Mr.windfrog · Productivity · Tools · published 2026-02-11 194 users

Like this one

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

  1. Concrete Calculator Describes nearly the same job, smaller audience 11 users
  2. Concrete Calculator — Metandum Describes nearly the same job, smaller audience 5 users ★ 5.0
  3. Concrete Slab Calculator Describes nearly the same job, smaller audience 129 users
  4. Concrete Calculator - Slab, Footing, Column & Bags Describes nearly the same job, smaller audience 3 users (last published figure)
  5. Wall Stud Calculator Describes nearly the same job, smaller audience 10 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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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/gdaabjaialemmckephgbfjmhihdniedj"><img src="https://extops.dev/extensions/gdaabjaialemmckephgbfjmhihdniedj/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

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