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Concrete Calculator

Chrome extension by Mr.windfrog · Productivity · Tools

  • Featured
  • Established publisher

A Chrome extension in Productivity · Tools with 6 users, barely installed.

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
6
Rating
5.0 (1 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
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
unchanged since 01.09
0-7 · 7 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
Rating
unchanged since 01.09
reviewsrating 5.00 · 7 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
Users
unchanged since 01.09
0-7 · 7 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
Rating
unchanged since 01.09
reviewsrating 5.00 · 7 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

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: 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, 4k users between them. Listed website: concretecalculator.org.

  1. Granny Unblocked Game Mr.windfrog · Lifestyle · Games · published 2026-05-04 2k users ★ 5.0
  2. Speed Stars Mr.windfrog · Lifestyle · Games · published 2026-05-05 716 users
  3. Block Blast Mr.windfrog · Lifestyle · Games · published 2026-02-12 291 users
Show 5 more from this publisher
  1. FNF Games - Friday Night Funkin' Mr.windfrog · Lifestyle · Games · published 2026-07-01 257 users
  2. Wordle Unlimited - Wordles.org Mr.windfrog · Lifestyle · Games · published 2025-11-09 231 users ★ 5.0
  3. Baseball Bros Mr.windfrog · Productivity · Tools · published 2026-02-11 154 users
  4. Space Waves Unblocked Mr.windfrog · Lifestyle · Games · published 2026-06-29 149 users
  5. 2048 Cupcakes Mr.windfrog · Lifestyle · Games · published 2025-11-09 123 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 Slab Calculator Describes nearly the same job, smaller audience 132 users
  3. Concrete Calculator - Slab, Footing, Column & Bags Describes nearly the same job, smaller audience 3 users
  4. Wall Stud Calculator Describes nearly the same job, smaller audience 7 users
  5. Concrete Calculator: Cost & Volume Estimator Describes a similar job, smaller audience 3 users (last published figure)

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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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.