# Stair Calculator: Construction

> Step, Run, Rise, Angle, Length

Canonical page: [https://chrome-stats.com/d/id1493037366](https://chrome-stats.com/d/id1493037366)

## Overview

- **ID:** `id1493037366`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Phan Nhat Đang
- **Category:** Utilities
- **Rating:** 4.10 / 5 (738 ratings)
- **Version:** 2.3.0
- **Last updated:** 2026-08-18
- **First published:** 2019-12-28
- **Size:** 1.45 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/stair-calculator-construction/id1493037366)
- **Website:** [http://nhatdang.freetzi.com/](http://nhatdang.freetzi.com/)
- **Privacy policy:** [https://www.facebook.com/permalink.php?story\_fbid=112033353640506&id=112025233641318&\_\_tn\_\_=K-R](https://www.facebook.com/permalink.php?story_fbid=112033353640506&id=112025233641318&__tn__=K-R)

## Description

Stair Calculator: Construction helps builders and designers determine accurate stair parameters—run, total run, rise, angle, and length—using flexible inputs and unit options.

It computes the largest and smallest possible step sets from your inputs and lets you copy results to the clipboard for easy use in plans and on site.

## Rankings

- #65,653 — Overall

## Review summary

User feedback is mixed. Some praise the app for its ease of use and long-term usefulness, especially for rise/run and stringer calculations with multiple outputs. However, recurring complaints focus on billing/cancellation issues, intrusive ads, and perceived low value or trust concerns. A portion of users also find it not helpful for specific projects. Overall, the app is easy to use, but billing practices and ad-heavy behavior affect reliability for many users.

### Pros

- Very easy to use.
- Has proven useful over many years for takeoffs and stair calculations.
- Supports rise/run and stringer calculations with multiple output options and quick scenario analysis.

### Cons

- Difficult to cancel subscriptions/free trials within the app; reports of no cancellation option and poor responsiveness from developers.
- Ads are intrusive and disruptive to workflow, with obnoxious frequency of ads.
- Some reviews claim the app is a scam or fails to deliver promised information/diagrams, leading to poor perceived value.
- Not all features meet real-world needs; several users find it confusing or not helpful for certain remodeling scenarios.

## Similar extensions and apps

- [Stair Calculator Plus](https://chrome-stats.com/d/id1442478865) — 3.00 / 5
- [Stair Calculator: Run & Rise](https://chrome-stats.com/d/id6502868383) — 4.20 / 5
- [Stair Calculator 2](https://chrome-stats.com/d/id1619604719)
- [Stair Calculator Pro](https://chrome-stats.com/d/id6757703166) — 4.00 / 5
- [Staircase Calculator & Planner](https://chrome-stats.com/d/id6756850142)
- [StairSmith](https://chrome-stats.com/d/id6767048001) — 5.00 / 5
- [Stair Calculator .](https://chrome-stats.com/d/id6760628453) — 3.70 / 5
- [StairsMeasure](https://chrome-stats.com/d/id1447099037) — 3.70 / 5
- [Visual Stair Calc](https://chrome-stats.com/d/id1174978871) — 1.00 / 5
- [Stair Help](https://chrome-stats.com/d/id1029967951) — 4.60 / 5
- [CutOnce - Builder's Calculator](https://chrome-stats.com/d/id6761668958) — 5.00 / 5
- [Stairs 3D: Framing Calculator](https://chrome-stats.com/d/id6760602710)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1493037366)