# Stair Calculator Plus vs Deck Help

The clearest difference is rating: Deck Help at 3.8 against Stair Calculator Plus's 3.0. Deck Help also leads on update cadence (every 4 months vs every 43 months) and review sentiment (14% vs 0%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Stair Calculator Plus costs $2.99 and Deck Help $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Deck Help holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 18 and 23 respectively. Written reviews point the same way: 0% of Stair Calculator Plus's written reviews are positive against 14% of Deck Help's.

Stair Calculator Plus ships an update every 43 months, Deck Help every 4 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Stair Calculator Plus | Deck Help |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [3.0 (18 ratings)](https://appshunter.io/ios/app/stair-calculator-plus/id1442478865/reviews) | **[3.8 (23 ratings)](https://appshunter.io/ios/app/deck-help/id1473798154/reviews)** |
| Number of ratings | 18 | **23** |
| Positive reviews | 0.0% of reviews | **14.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 8 MB | 20 MB |
| Requires iOS | 12 | **10.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Armchair Engineering](https://appshunter.io/developer/398901339) |

## What reviewers say

### Stair Calculator Plus

[App page](https://appshunter.io/ios/app/stair-calculator-plus/id1442478865)

This utility app assists with stair design by instantly calculating crucial measurements like rise, run, and rail angle. It supports high precision with up to 16 decimal places and offers flexibility with various input units. Results can be easily copied to other applications for seamless workflow integration.

**Highlights:** Instant stair rise and run calculation, Calculate stair rail angle, Determine stringer length, Support for 16 decimal places, Multiple input units, Copy results to other apps

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

**In-app purchases:** none


### Deck Help

[App page](https://appshunter.io/ios/app/deck-help/id1473798154)

Calculate decking material needs, including timber lengths and set outs for bearers and joists. Supports various measurement units and decimal place preferences for precise calculations.

**Highlights:** Calculate bearer and joist lengths, Determine stump, bearer, joist, and board set outs, Supports mm, cm, inches, and feet, Select preferred decimal places, Accurately solve deck equations

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stair Calculator Plus free?

Stair Calculator Plus costs $2.99, with no in-app purchases.

### Is Deck Help free?

Deck Help costs $2.99, with no in-app purchases.

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

Deck Help is rated higher. Stair Calculator Plus averages 3.0 out of 5 from 18 ratings, while Deck Help averages 3.8 from 23 ratings.

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

Neither Stair Calculator Plus nor Deck Help shows ads.

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

Stair Calculator Plus ships an update every 43 months, and Deck Help every 4 months. Most recently, Stair Calculator Plus was updated on October 13, 2026 and Deck Help on October 10, 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.*