# Span64 vs RedX Construction Calculator

The clearest difference is in-app purchases: RedX Construction Calculator at none against Span64's 1. RedX Construction Calculator also leads on iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Span64 sells 1 one-off in-app purchase. RedX Construction Calculator asks for nothing beyond the download.

## The numbers

| Metric | Span64 | RedX Construction Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/redx-construction-calculator/id6792503463/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | — | Free |
| Size | 30 MB | 19 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roberto Garrido](https://appshunter.io/developer/943471024) | [RedX Technology Inc](https://appshunter.io/developer/835492291) |

## What reviewers say

### Span64

[App page](https://appshunter.io/ios/app/span64-construction-calc/id6789300863)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Span64 Pro | $19.99 | one-time |


### RedX Construction Calculator

[App page](https://appshunter.io/ios/app/redx-construction-calculator/id6792503463)

This free utility app performs complex calculations for construction professionals. It handles feet-inch-fraction math, roof pitches, stair layouts, and unit conversions with ease. Offers step-by-step guides and both light and dark modes.

**Highlights:** Feet-inch-fraction math, Roof pitch and rafter solvers, Stair layout calculations, Unit conversion (imperial/metric), Area and volume calculations, Step-by-step guides

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

**In-app purchases:** none


## Frequently asked questions

### Is Span64 free?

Span64 is free to download, with in-app purchases available.

### Is RedX Construction Calculator free?

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

### Do Span64 or RedX Construction Calculator have ads?

Neither Span64 nor RedX Construction Calculator shows ads.

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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.*