# Construction Calculator vs Stair Stringer Calculator Pro

The clearest difference is in-app purchases: Construction Calculator at none against Stair Stringer Calculator Pro's 1. Construction Calculator also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Stair Stringer Calculator Pro's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Stair Stringer Calculator Pro sells 1 one-off in-app purchase. Construction Calculator asks for nothing beyond the download.

## The numbers

| Metric | Construction Calculator | Stair Stringer Calculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Size | 27 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Inkal Vadodariya](https://appshunter.io/developer/6816386423) | [京昌 陈](https://appshunter.io/developer/6783155021) |

## What reviewers say

### Construction Calculator

[App page](https://appshunter.io/ios/app/construction-calculator-tools/id6817295803)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stair Stringer Calculator Pro

[App page](https://appshunter.io/ios/app/stair-stringer-calculator-pro/id6817401495)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stair Stringer Pro | $9.99 | one-time |


## Frequently asked questions

### Is Construction Calculator free?

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

### Is Stair Stringer Calculator Pro free?

Stair Stringer Calculator Pro is free to download, with in-app purchases available.

### Do Construction Calculator or Stair Stringer Calculator Pro have ads?

Construction Calculator shows ads; Stair Stringer Calculator Pro does not.

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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.*