# Construction Calc Pro Lite vs Stair Calculator

The clearest difference is rating: Construction Calc Pro Lite at 4.8 against Stair Calculator's 4.1. Construction Calc Pro Lite also leads on in-app purchases (none vs 2). Stair Calculator's advantage is ads (none vs shown) and ratings volume (740 vs 5). On price, update cadence and device support there is nothing between them.

Both are free to download. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. Construction Calc Pro Lite asks for nothing beyond the download.

Construction Calc Pro Lite holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Stair Calculator has 740 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 10% of Construction Calc Pro Lite's written reviews are positive against 21% of Stair Calculator's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Construction Calc Pro Lite | Stair Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/construction-calc-pro-lite/id942135958/reviews)** | [4.1 (740 ratings)](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366/reviews) |
| Number of ratings | 5 | **740** |
| Positive reviews | 9.5% of reviews | **21.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 89 MB | 1 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) |

## What reviewers say

### Construction Calc Pro Lite

[App page](https://appshunter.io/ios/app/construction-calc-pro-lite/id942135958)

This calculator app is designed for construction professionals, offering specialized functions for measurements in feet, inches, and fractional inches. It includes modules for material estimates, conversions, area and volume calculations, trigonometry, and stair design, transforming your device into a construction computer.

**Highlights:** Feet, inches, and fractional inch measurements, Material estimation modules, Area and volume calculations, Trigonometry and triangle solver, Stair and crown moulding calculators, Fraction reduction and conversion, Estimate transfer and email

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

**In-app purchases:** none


### Stair Calculator

[App page](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366)

This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.

**Highlights:** Calculate stair construction parameters, Flexible input for Run or Total Run, Determine largest and smallest step sets, Support for various units, Copy results to clipboard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Premium Package | $9.99 | per year |
| Unlock all features | $5.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful information
- 🚀 Provides useful calculations

**What reviewers complain about**

- 🐛 Doesn't work as expected
- 🔒 No way to cancel subscription
- 🔒 Difficult to cancel trial
- 🤬 Obnoxious ads
- 🤬 Misleading as a learning tool

**Reported bugs**

- Subscription numbers don't add up
- Doesn't provide promised features after purchase

**Requested features**

- Option to uninstall app
- Ability to calculate run based on rise and landing space
- Provide more detailed diagrams and visuals


## Frequently asked questions

### Is Construction Calc Pro Lite free?

Construction Calc Pro Lite is free to download, with no in-app purchases.

### Is Stair Calculator free?

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

### Which has better reviews, Construction Calc Pro Lite or Stair Calculator?

Construction Calc Pro Lite is rated higher. Construction Calc Pro Lite averages 4.8 out of 5 from 5 ratings, while Stair Calculator averages 4.1 from 740 ratings.

### Do Construction Calc Pro Lite or Stair Calculator have ads?

Construction Calc Pro Lite shows ads; Stair Calculator does not.

### Which is updated more often, Construction Calc Pro Lite or Stair Calculator?

Construction Calc Pro Lite ships an update every 3 months, and Stair Calculator every 3 months. Most recently, Construction Calc Pro Lite was updated on November 1, 2026 and Stair Calculator on November 3, 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.*