Deck Help vs Stair Calculator 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deck Help
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.
- 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
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Deck Help is the easiest way to calculate decking material requirements, timber lengths and associated values when building! Quickly find bearer and joist lengths, as well as stump, bearer, joist and board set outs for a given deck width and length. Features Include: - Accurately solve deck equations - Enter lengths in mm, cm, inches or feet - Select your preferred number of decimal places
Stair Calculator 2
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Stair Calculator 2 is a fast, easy way to create a schedule of stair calculations for any size of job or just to perform a single calculation on the fly. Put your pencil down and start making professional, consistent calculations today. - Universal app allows use on both iPad, Mac and iPhone/iPod with single purchase. - Create an unlimited list of calculations that automatically save. - Solve rise, run, incline, headroom, stringer length, throat and more. - Calculate baluster spacing using the built-in spacing utility. - View a detailed diagram of the stairwell or the stringer that is to scale and zoomable. - Print directly from the app or save to your camera roll. - Change font size, arrow size, line width, and more to customize your drawing. - Work in either imperial or metric. - Built in construction calculator allows intermediate calculations to be performed within the app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Deck Help | Stair Calculator 2 |
|---|---|---|
| Price | $2.99 — better | $6.99 |
| Rating | 3.8 (23 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 4 months — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 20 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Armchair Engineering | Snappy Appz Inc. |
In-app purchases
Deck Help
No in-app purchases
Stair Calculator 2
No in-app purchases
Questions
Is Deck Help free?
Is Stair Calculator 2 free?
Do Deck Help or Stair Calculator 2 have ads?
Which is updated more often, Deck Help or Stair Calculator 2?
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