Apps by Armchair Engineering
Concrete Help app icon

Utilities

Concrete Help

Armchair Engineering

$1.99 4.75 · 4 storefronts · 404 ratings In-app purchases
Open on Apple

About this app

Concrete Help is the easiest way to find how much concrete is needed for a given hole, slab or tube. Features Include: - Accurately solve concrete volume equations - Set preferred input units from: mm, cm, m, km, inches, feet, yards and miles - Set preferred output units from: mm³, cm³, m³, km³, cubic inches, cubic feet, cubic yards and cubic miles - Select your preferred number of decimal places

Latest release

What’s New

Version 1.3.1 Nov 8, 2019

- Fixed floating keyboard bug, present on some devices running iOS 13

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
115 ratings
115 Aug 7, 2026 · 115 ratings Aug 7, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current $1.99
Historical low USD 1.99
Paid → free
Price history
Current $1.99
$1.99 $1.00 Free Aug 7, 2026 · $1.99 Aug 12, 2026 · $1.99 Aug 7, 2026 Aug 12, 2026
  1. First observed Aug 7, 2026 · 10:43 PM $1.99

Screenshots

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