# Construction Calculator Pro #1 vs Chalk

The clearest difference is in-app purchases: Construction Calculator Pro #1 at none against Chalk's 2. Construction Calculator Pro #1 also leads on ratings volume (97 vs 2) and iOS requirement (17.0 vs 26.0). Chalk's advantage is rating (5.0 vs 4.5) and update cadence (every 3 months vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. Chalk sells 2 in-app purchases, starting at $2.99 per 7 days. Construction Calculator Pro #1 asks for nothing beyond the download.

Chalk holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Construction Calculator Pro #1 has 97 ratings behind it against 2, so its average is the more settled of the two.

Construction Calculator Pro #1 ships an update every 12 months, Chalk every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Construction Calculator Pro #1 | Chalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (97 ratings)](https://appshunter.io/ios/app/construction-calculator-pro-1/id6748603879/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chalk-construction-calculator/id6790033351/reviews)** |
| Number of ratings | **97** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 18 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oryx](https://appshunter.io/developer/1778234263) | [Lionary LLC](https://appshunter.io/developer/1049490654) |

## What reviewers say

### Construction Calculator Pro #1

[App page](https://appshunter.io/ios/app/construction-calculator-pro-1/id6748603879)

This app provides advanced construction math tools for builders and contractors. It offers precise calculations for framing, material estimation, and complex angles, helping to reduce errors and save time on the job.

**Highlights:** Dimensional conversions (feet-inch, decimal, metric), Rafter, stair, and angle calculations, Area, volume, and material estimations, Roofing, drywall, and siding estimates, Quick input with preset fraction buttons

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

**In-app purchases:** none


### Chalk

[App page](https://appshunter.io/ios/app/chalk-construction-calculator/id6790033351)

This construction calculator handles metric and imperial units seamlessly, offering specialized tools for various trades like framing, tiling, and concrete work. It features an AI advisor for job guidance and works offline, ensuring accessibility on any job site.

**Highlights:** Metric and imperial unit support, Specialized trade calculators (stairs, rafters, concrete, etc.), AI Advisor for job guidance, Offline functionality, Adjustable fraction precision, Saved projects

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chalk Pro Weekly | $2.99 | per 7 days |
| Chalk Pro Yearly | $17.99 | per year |


## Frequently asked questions

### Is Construction Calculator Pro #1 free?

Construction Calculator Pro #1 is free to download, with no in-app purchases.

### Is Chalk free?

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

### Which has better reviews, Construction Calculator Pro #1 or Chalk?

Chalk is rated higher. Construction Calculator Pro #1 averages 4.5 out of 5 from 97 ratings, while Chalk averages 5.0 from 2 ratings.

### Do Construction Calculator Pro #1 or Chalk have ads?

Neither Construction Calculator Pro #1 nor Chalk shows ads.

### Which is updated more often, Construction Calculator Pro #1 or Chalk?

Construction Calculator Pro #1 ships an update every 12 months, and Chalk every 3 months. Most recently, Construction Calculator Pro #1 was updated on October 24, 2026 and Chalk on October 24, 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.*