Stair Calculator Plus vs Stair Stringer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stair Calculator Plus
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.
- 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
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Stair Calculator can be used to find stair rise and run, stair rail angle, stringer length, and other important factors of stair design. Features: - Instant calculation - Result are copy able to other app - Formula are include as reference - Support up to 16 decimal place - Support various unit for each input General guidelines in Stair Design : - Run unit should not be less than 10 inches / 25 cm - Rise unit should not exceed 7 3/4 inches / 20 cm A stairway, staircase, stairwell, flight of stairs, or simply stairs is a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps. Stairs may be straight, round, or may consist of two or more straight pieces connected at angles. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Stair Stringer
This app calculates all necessary measurements for building a stair stringer, including risers, run, angle, and length. Easily adjust parameters and switch between Imperial and Metric units. Share your calculated results via email or text.
- Calculates stair risers and run
- Determines stair angle and stringer length
- Calculates step height and tread depth
- Determines the number of steps
- Adjustable parameters
- Imperial or Metric units
- Share results via email/text
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This App is used for finding the measurements needed to construct a Stair Stringer. It calculates stair risers and run, stair angle, stringer length, step height, tread depth, and the number of steps required for a given run of stairs. Easy to adjust parameters to customize and fit your requirements. Inputs and Results can be Imperial or Metric. The calculated results can be emailed or texted as needed.
Screenshots
Verdict
The clearest difference is review sentiment: Stair Stringer at 67% against Stair Calculator Plus's 0%. Stair Stringer also leads on rating (4.7 vs 3.0) and update cadence (every 5 weeks vs every 43 months). Stair Calculator Plus's advantage is iOS requirement (12 vs 14.0). On ads, in-app purchases, monetization model and device support 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
Stair Calculator Plus costs $2.99 and Stair Stringer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stair Stringer holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 18 and 86 respectively. Written reviews point the same way: 0% of Stair Calculator Plus's written reviews are positive against 67% of Stair Stringer's.
Stair Calculator Plus ships an update every 43 months, Stair Stringer every 5 weeks. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.
| Parameter | Stair Calculator Plus | Stair Stringer |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 3.0 (18 ratings) | 4.7 (86 ratings) — better |
| Positive reviews | 0.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 18 | 86 — better |
| Update frequency | Every 43 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #126 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12 — better | 14.0 |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | H3 Apps, LLC |
Customer experience
Stair Calculator Plus
Stair Stringer
In-app purchases
Stair Calculator Plus
No in-app purchases
Stair Stringer
No in-app purchases
Questions
Is Stair Calculator Plus free?
Is Stair Stringer free?
Which has better reviews, Stair Calculator Plus or Stair Stringer?
Do Stair Calculator Plus or Stair Stringer have ads?
Which is updated more often, Stair Calculator Plus or Stair Stringer?
Other comparisons
