# Construction Calculator A1 Pro vs Switch2Steel

The clearest difference is price: Switch2Steel at Free against Construction Calculator A1 Pro's $39.99. Switch2Steel also leads on update cadence (fortnightly vs monthly) and iOS requirement (13.0 vs 15.0). Construction Calculator A1 Pro's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Switch2Steel is free to download; Construction Calculator A1 Pro costs $39.99 up front. Switch2Steel sells 2 one-off in-app purchases. Construction Calculator A1 Pro asks for nothing beyond the download.

Construction Calculator A1 Pro ships an update monthly, Switch2Steel fortnightly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Construction Calculator A1 Pro | Switch2Steel |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/construction-calculator-a1-pro/id1587368490/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Paid | — |
| Size | 126 MB | 123 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) | [ONE SOURCE - CONSULTORIA INFORMATICA, LDA](https://appshunter.io/developer/1462432399) |

## What reviewers say

### Construction Calculator A1 Pro

[App page](https://appshunter.io/ios/app/construction-calculator-a1-pro/id1587368490)

This app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It helps estimate material quantities, steel tonnage, and perform complex measurements with ease. Users can also generate Bills of Quantities and export reports for clients.

**Highlights:** Concrete quantity estimation, Rebar bending schedule (BBS), Feet-inches calculator, Area and volume calculations, Bill of Quantities (BOQ) export, Project organization and sharing

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

**In-app purchases:** none


### Switch2Steel

[App page](https://appshunter.io/ios/app/switch2steel/id1588806005)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 credits | $8.99 | one-time |
| 100 credits | $14.99 | one-time |


## Frequently asked questions

### Is Construction Calculator A1 Pro free?

Construction Calculator A1 Pro costs $39.99, with no in-app purchases.

### Is Switch2Steel free?

Switch2Steel is free to download, with in-app purchases available.

### Do Construction Calculator A1 Pro or Switch2Steel have ads?

Neither Construction Calculator A1 Pro nor Switch2Steel shows ads.

### Which is updated more often, Construction Calculator A1 Pro or Switch2Steel?

Construction Calculator A1 Pro ships an update monthly, and Switch2Steel fortnightly. Most recently, Construction Calculator A1 Pro was updated on November 7, 2026 and Switch2Steel on November 5, 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.*