# Construction Calculator A1 vs GeoChemPro

The clearest difference is ads: GeoChemPro at none against Construction Calculator A1's shown. GeoChemPro also leads on update cadence (weekly vs every 4 weeks) and iOS requirement (12.4 vs 15.0). Construction Calculator A1's advantage is device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Construction Calculator A1 ships an update every 4 weeks, GeoChemPro weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Construction Calculator A1 | GeoChemPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 161 MB | 45 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) | [Z LAB Studio LLC](https://appshunter.io/developer/1689622581) |

## What reviewers say

### Construction Calculator A1

[App page](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051)

This app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It offers material quantity estimation, unit conversion, and professional features like BOQ export and project organization. Designed for contractors, builders, and engineers on job sites worldwide.

**Highlights:** Concrete material quantity calculation, Rebar bending schedule and weight calculation, Feet-inch arithmetic without decimal conversion, Area and volume calculations for 15+ shapes, Construction-specific unit conversions, Bill of Quantities (BOQ) export to PDF/Excel, Save and organize calculations by project

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases:** none


### GeoChemPro

[App page](https://appshunter.io/ios/app/geochempro/id6449550052)

**In-app purchases:** none


## Frequently asked questions

### Is Construction Calculator A1 free?

Construction Calculator A1 is free to download, with no in-app purchases.

### Is GeoChemPro free?

GeoChemPro is free to download, with no in-app purchases.

### Do Construction Calculator A1 or GeoChemPro have ads?

Construction Calculator A1 shows ads; GeoChemPro does not.

### Which is updated more often, Construction Calculator A1 or GeoChemPro?

Construction Calculator A1 ships an update every 4 weeks, and GeoChemPro weekly. Most recently, Construction Calculator A1 was updated on October 25, 2026 and GeoChemPro on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*