# Stair Help — Staircase Calculator

> Calculates staircase dimensions for building and construction projects. (iPhone/iPad app by Armchair Engineering.)

- Source: https://appshunter.io/ios/app/stair-help/id1029967951 (this page in markdown: same URL + `.md`)
- Developer: [Armchair Engineering](https://appshunter.io/developer/398901339)
- Category: Utilities, Productivity
- Price: $1.99
- Rating: 4.60/5 from 239 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 5 MB
- Languages: American English
- Released: 2015-08-14
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/stair-help/id1029967951/reviews.md

## What is Stair Help?

Stair Help is the easiest way to calculate staircase riser, going, stringer & base lengths when building!

Features Include: 

- Accurately solve staircase equations
- Set preferred units from: mm, cm, inches
- Adjustable max riser height
- Set preferred number of decimal places
- Set preferred fraction of an inch precision (between 1/2 & 1/256)

## Key features

- 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

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/stair-help/id1029967951/reviews.md

### 2/5 — Limited

*2022-12-02*

No way to either adjust angle or base measurement . Just wasted my money.

### 1/5 — No use

*2022-07-03*

You can only input height of stairs and length of steps and that’s it as if this app already knows the the base length of my stairs 
Useless if I can’t input my desired base length

### 5/5 — Technician

*2022-03-14*

A very handy app.

### 1/5 — Sorry but it’s not worth £1.99

*2021-02-24*

I brought this app as the clean look appealed to me. However, it’s a bit too clean. Even a basic angle calculator function is missing. Please update to include the basics. Thanks.

### 5/5 — Stairs

*2020-10-07*

The app is great saves a lot of time and money great 🤙🤙🤙🤙

### 1/5 — Too basic

*2020-07-09*

For a paid app I expected to be able to set more than two parameters and I expected much more detail. I could have used a calculator for free. Or a free stair app.

### 3/5 — Degrees

*2019-08-06*

Needs a section in the app that gives you the degrees of the stringer at the top

**Developer response:** Thanks for the suggestion Micko, I’ll put that on the todo list!

### 1/5 — Pire application de calculs d’escaliers a date.

*2019-05-27*

Vraiment pas pratique.
Probablement le pire de tous

### 1/5 — Terrible app

*2019-03-18*

Don’t waste your $1.99. No help at all. Can find staircase calculators free on line that are much much better. Who’s the idiot that made this app? I know the sucker that paid $1.99 for it.....me.

### 1/5 — Not very useful

*2018-07-03*

There are free apps and middle school math that is as helpful as this math. Look for something else

## Frequently asked questions about Stair Help

### What does Stair Help do?

Stair Help is a utility application designed to simplify the process of calculating staircase dimensions. It accurately solves equations for riser height, going, stringer length, and base length, making it easier for users to plan and build staircases.

### What are the key features of Stair Help?

Key features include the ability to accurately solve staircase equations, set preferred units of measurement (mm, cm, inches), adjust the maximum riser height, and set preferred decimal places and fraction of an inch precision.

### Is Stair Help free to use?

Yes, based on the provided information, Stair Help is a free application. There are no mentions of in-app purchases or advertisements, suggesting it is entirely free for users.

### Who would benefit from using Stair Help?

This app is ideal for DIY enthusiasts, carpenters, builders, and anyone undertaking a project that involves building or renovating staircases. It provides precise calculations to ensure accuracy and efficiency in construction.

## Version history (last 5 releases)

### 1.5.1 — 2019-11-08

- Fixed floating keyboard bug, present on some devices running iOS 13

### 1.5 — 2018-10-04

- Support for new larger-screen iPhones

### 1.4 — 2018-02-01

- iPhone X support

### 1.3 — 2016-09-21

- iOS 10 support

### 1.2 — 2016-01-29

- Inches are now measured in inches and fractions of an inch (instead of decimal inches)
- Added support for iPad multitasking
- Bug fixes

## Apps similar to Stair Help

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Stair Calculator Plus](https://appshunter.io/ios/app/stair-calculator-plus/id1442478865) | 3.0 (18) | $2.99 | Utilities |
| [Stair Calculator: Run & Rise](https://appshunter.io/ios/app/stair-calculator-run-and-rise/id6502868383) | 4.2 (43) | Free | Utilities |
| [RedX Stairs - 3D Calculator](https://appshunter.io/ios/app/redx-stairs-3d-calculator/id1589688170) | 4.5 (407) | Free | Utilities |
| [RedX Roof - Rafter Calculator](https://appshunter.io/ios/app/redx-roof-rafter-calculator/id1519896740) | 4.7 (850) | Free | Utilities |
| [Chippy Tools: Construction](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717) | 4.5 (905) | Free | Utilities |
| [RedX Decks - 3D Deck Builder](https://appshunter.io/ios/app/redx-decks-3d-deck-builder/id6474487367) | 4.3 (503) | Free | Utilities |

## More apps by Armchair Engineering

- [Ohmulator](https://appshunter.io/ios/app/ohmulator/id398901336)
- [Trigonometry Help](https://appshunter.io/ios/app/trigonometry-help/id411415648)
- [Fraction Help Calculator](https://appshunter.io/ios/app/fraction-help-calculator/id413490922)
- [Temperature Converter Classic](https://appshunter.io/ios/app/temperature-converter-classic/id417716278)
- [Student Timetable](https://appshunter.io/ios/app/student-timetable/id417962791)
- [Character Pad](https://appshunter.io/ios/app/character-pad/id418874651)

All apps by Armchair Engineering: https://appshunter.io/developer/398901339

## Related topics

[staircase calculator](https://appshunter.io/ios/topics/staircase-calculator) · [stair calculator 2](https://appshunter.io/ios/topics/stair-calculator-2) · [stair calculator plus](https://appshunter.io/ios/topics/stair-calculator-plus)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*