# Stair Help vs Stair Calculator

The clearest difference is price: Stair Calculator at Free against Stair Help's $1.99. Stair Calculator also leads on update cadence (every 3 months vs every 8 months) and ratings volume (740 vs 241). Stair Help's advantage is in-app purchases (none vs 2) and rating (4.6 vs 4.1). On review sentiment, ads and device support there is nothing between them.

Stair Calculator is free to download; Stair Help costs $1.99 up front. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. Stair Help asks for nothing beyond the download.

Stair Help holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 241 and 740 respectively. Written reviews point the same way: 25% of Stair Help's written reviews are positive against 21% of Stair Calculator's.

Stair Help ships an update every 8 months, Stair Calculator every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Stair Help | Stair Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.6 (241 ratings)](https://appshunter.io/ios/app/stair-help/id1029967951/reviews)** | [4.1 (740 ratings)](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366/reviews) |
| Number of ratings | 241 | **740** |
| Positive reviews | **25.0% of reviews** | 21.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 1 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) |

## What reviewers say

### Stair Help

[App page](https://appshunter.io/ios/app/stair-help/id1029967951)

This application simplifies staircase construction by accurately calculating essential measurements like riser, going, and stringer lengths. It offers customizable units, riser height, and precision settings for fractions and decimal places.

**Highlights:** Calculate riser, going, stringer, and base lengths, Set preferred units (mm, cm, inches), Adjustable max riser height, Set preferred decimal places, Set fraction of an inch precision

**Features:** 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 Stair Help free?

Stair Help costs $1.99, with no in-app purchases.

### Is Stair Calculator free?

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

### Which has better reviews, Stair Help or Stair Calculator?

Stair Help is rated higher. Stair Help averages 4.6 out of 5 from 241 ratings, while Stair Calculator averages 4.1 from 740 ratings.

### Do Stair Help or Stair Calculator have ads?

Neither Stair Help nor Stair Calculator shows ads.

### Which is updated more often, Stair Help or Stair Calculator?

Stair Help ships an update every 8 months, and Stair Calculator every 3 months. Most recently, Stair Help 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.*