# Construction Calculator vs LFA Stairs Pro

The clearest difference is update cadence: LFA Stairs Pro at every 3 days against Construction Calculator's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Construction Calculator sells 10 in-app purchases, starting at $2.99 per 7 days and LFA Stairs Pro sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Construction Calculator ships an update every 2 weeks, LFA Stairs Pro every 3 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Construction Calculator | LFA Stairs Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (24 ratings)](https://appshunter.io/ios/app/construction-calculator-pro/id6753908597/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 60 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Shapkin Dev](https://appshunter.io/developer/1845645309) | [Lorenzo Francisco Almonte](https://appshunter.io/developer/6782756160) |

## What reviewers say

### Construction Calculator

[App page](https://appshunter.io/ios/app/construction-calculator-pro/id6753908597)

This app provides a comprehensive suite of tools for construction professionals and DIY enthusiasts, offering precise calculations for decking, roofing, stairs, concrete, and more. It simplifies complex measurements and material takeoffs, ensuring accuracy and efficiency on the job site, even offline.

**Highlights:** Decking and flooring calculations, Roofing material and coverage estimators, Stair and stringer rise/run calculations, Concrete and volume estimators, Unit conversion for mixed units, Offline functionality

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carpenter PRO - Weekly | $2.99 | per 7 days |
| Full Access — Weekly | $5.99 | per 7 days |
| Carpenter PRO — Annual | $19.99 | per year |
| Full Access | $39.99 | per year |
| Right Triangle & Pitch Calculator | $3.99 | one-time |
| Running Measurements Calculator | $3.99 | one-time |
| Unit Converter: Feet & Metric | $3.99 | one-time |
| Paint Area Coverage Estimator | $3.99 | one-time |
| Lifetime Access | $39.99 | one-time |
| Lifetime Access | $79.99 | one-time |


### LFA Stairs Pro

[App page](https://appshunter.io/ios/app/lfa-stairs-pro/id6814916882)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is Construction Calculator free?

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

### Is LFA Stairs Pro free?

LFA Stairs Pro is free to download, with in-app purchases available.

### Do Construction Calculator or LFA Stairs Pro have ads?

Neither Construction Calculator nor LFA Stairs Pro shows ads.

### Which is updated more often, Construction Calculator or LFA Stairs Pro?

Construction Calculator ships an update every 2 weeks, and LFA Stairs Pro every 3 days. Most recently, Construction Calculator was updated on November 9, 2026 and LFA Stairs Pro on October 31, 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.*