# Deck Help vs Stair Calculator 2

The clearest difference is update cadence: Deck Help at every 4 months against Stair Calculator 2's every 26 months. Deck Help also leads on price ($2.99 vs $6.99) and device support (4 vs 2). On ads and in-app purchases there is nothing between them.

Deck Help costs $2.99 and Stair Calculator 2 $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Deck Help ships an update every 4 months, Stair Calculator 2 every 26 months. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Deck Help | Stair Calculator 2 |
| --- | --- | --- |
| Price | **$2.99** | $6.99 |
| Rating | **[3.8 (23 ratings)](https://appshunter.io/ios/app/deck-help/id1473798154/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 26 months |
| Monetization | Paid | — |
| Size | 20 MB | 15 MB |
| Requires iOS | **10.0** | 17.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### 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


### Stair Calculator 2

[App page](https://appshunter.io/ios/app/stair-calculator-2/id1619604719)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deck Help free?

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

### Is Stair Calculator 2 free?

Stair Calculator 2 costs $6.99, with no in-app purchases.

### Do Deck Help or Stair Calculator 2 have ads?

Neither Deck Help nor Stair Calculator 2 shows ads.

### Which is updated more often, Deck Help or Stair Calculator 2?

Deck Help ships an update every 4 months, and Stair Calculator 2 every 26 months. Most recently, Deck Help was updated on October 10, 2026 and Stair Calculator 2 on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*