StairBuilderPro vs Sprinkler Zone Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StairBuilderPro
This iPad app simplifies stair stringer layout by calculating and plotting all necessary points on your board. It eliminates the need for specialized tools and prior knowledge, guiding users through the process with visual aids. Works with both imperial and metric measurements.
- Graphical interface for dimension entry
- Automatic plotting of stringer points
- Step-by-step visual guidance
- Imperial and metric measurement support
- Eliminates need for framing square
- Connect-the-dots cutting method
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From the creator of BalusterPro comes StairBuilderPro, a unique stair stringer layout tool designed specifically for the iPad. Simply enter your dimensions on the graphical interface and StairBuilderPro will plot all of the points on your board needed for a perfectly cut stringer. For advanced users, a single tap will plot all of the points at once or with the step through method, the app will visually walk you through the entire process one step at a time. All there is left to do is connect the dots and cut along these lines. It is that simple. Unlike all the other stair stringer layout guides, there is no need for a framing square, stair gauges or any previous knowledge for building stairs. The only tools you will need are a pencil, tape measure, straight edge and a saw! Works in both imperial and metric measurements. Check out the video demo at my website to see StairBuilderPro in action. Check out my other construction related apps....BalusterPro for a baluster spacing calculator & TilePro for a simple tile layout tool.
Sprinkler Zone Calculator
This tool helps calculate sprinkler system flow and zone capacity. It guides nozzle selection and determines the number of sprinkler heads per zone to maximize available flow. Built-in charts and configurable zone capacity simplify system planning.
- Calculate flow and zone capacity
- Guide nozzle selection
- Determine sprinkler heads per zone
- Maximize available flow
- Built-in nozzle performance charts
- Configurable zone capacity
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The Hunter Sprinkler Zone Calculator is your all-in-one tool for calculating flow and zone capacity. This app guides you through nozzle selection and helps you determine how many sprinkler heads you can safely add to each zone while helping you maximize your available flow. Built-in nozzle performance charts allow you to focus on your needs instead of reading through lengthy data tables, and a configurable zone capacity helps eliminate problems before installation. Work confidently with Hunter rotors, sprays, and MP Rotator nozzles with the Sprinkler Zone Calculator.
Screenshots
Verdict
The clearest difference is price: Sprinkler Zone Calculator at Free against StairBuilderPro's $4.99. Sprinkler Zone Calculator also leads on review sentiment (100% vs 56%) and rating (4.3 vs 3.2). StairBuilderPro's advantage is iOS requirement (8.0 vs 15.0). On ratings volume, update cadence, 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
Sprinkler Zone Calculator is free to download; StairBuilderPro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sprinkler Zone Calculator holds the better App Store score, 4.3 against 3.2. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews point the same way: 56% of StairBuilderPro's written reviews are positive against 100% of Sprinkler Zone Calculator's.
StairBuilderPro ships an update every 8 months, Sprinkler Zone Calculator every 10 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | StairBuilderPro | Sprinkler Zone Calculator |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.2 (6 ratings) | 4.3 (3 ratings) — better |
| Positive reviews | 55.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 3 |
| Update frequency | Every 8 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Greg Gabrio | Hunter Industries |
Customer experience
StairBuilderPro
Sprinkler Zone Calculator
In-app purchases
StairBuilderPro
No in-app purchases
Sprinkler Zone Calculator
No in-app purchases
Questions
Is StairBuilderPro free?
Is Sprinkler Zone Calculator free?
Which has better reviews, StairBuilderPro or Sprinkler Zone Calculator?
Do StairBuilderPro or Sprinkler Zone Calculator have ads?
Which is updated more often, StairBuilderPro or Sprinkler Zone Calculator?
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