StairBuilderPro vs Roof Guide
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.
Roof Guide
This app provides specialized calculators for roofing, framing, decking, stairs, and concrete projects. It helps construction professionals estimate quantities, costs, and set out materials accurately using US or metric measurements.
- Roof framing calculations
- Decking and flooring estimator
- Stud wall setout and costing
- Stair framing calculations
- Concrete volume and cost estimator
- Metric and imperial unit conversion
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Roofing and framing carpentry calculator, decking, stairs, concrete, stud wall calculators. In addition to the roof calculators the decking / flooring, stud wall and concrete calculators also estimate quantities and costs. US or metric measurements. Developed by a carpenter and builder, used by carpenters, roofers, contractors, builders and construction pros in over 40 countries around the world. Roof Guide (previously Roofers Guide) is not a 'How to App’ - you know how! It is designed to save you the time and effort required for roof, framing, deck, stairs & other building / construction calculations Accurate, reliable and easy to use, it is an indispensable tool for the construction pro. Metric or Imperial (feet, inches and fractions of an inch (or decimal) Print, email or reports. Never forget your span or rafter tables, red roofing book and other standalone construction calculators again! CALCULATIONS INCLUDE: ROOF FRAMING:- - Rafter,Hip/Valley Lengths - Multiple cut angles, including for compound saw - Template (adjustable) sizes for the same cuts - where used - Setout of Creepers/Jack Rafters(US), ridge and wall - Roof Pitch Factor degrees, inches (US), D:M:S - Rise : Run ratio - Birdsmouth calculations - Drop or Chamfer Hip adjustments - Multiple heights measures, including:- top/bottom of ridge, roof centre, - Hypotenuse calculations eg: Calculate Pitch from ridge rise - Adjust pitching plate heights where one wall is higher eg Bulkheads - Ridge length, area, rake factors - Print, email or message reports DECKING & FLOORING SETOUT, MATERIAL ESTIMATING and COSTING:- - Options for Insets, single or double bearers - Set Spacing type to maximum, fixed or equal - Set pricing for materials / labour to calculate cost and cost/area TIMBER SETOUT:- - Set Spacing type to maximum, fixed or equal - Insets at start and end. STUD WALLS SETOUT, MATERIAL ESTIMATING and COSTING:- - Raked or flat walls - Sizing, Quantity & Cost Estimates - Timber (studs, noggins, plates) & Sheeting - Comprehensive setout lists - bottom, top - Align sheets on width, length or no sheets STAIR FRAMING (currently for single stair runs):- Permits Multiple restrictions on risers, treads, inclines and also allows application of 2R+G (2R+TD in US) in jurisdictions required - to meet standards. Other than StairCalc (which is our Stair only app) we do not know of an app that does this simultaneously. Also calculations allow for situations where the overall stair rise and run are fixed or variable allowing maximum flexibility. - Number and size of step risers, treads, step inclines, - Step incline (Also changeable), - Stairwell opening, - Stringer Lengths CONCRETE CALCULATOR / ESTIMATOR:- - Calculate quantities for slabs, footings, round and rectangular/square holes. - Estimates total volume and cost allowing for waste. CONVERTER:- - Convert Lengths, Area, Volume: Metric and US/Imperial. - Work in Decimal units or Yds/Ft/In/Fraction format to Metric, decimal US. EASY TO USE GENERAL CALCULATOR WITH TAPE: - Calculate (add, subtract etc) directly in feet / inches / fractions or decimals. - Common functions for quick calculation EXTENSIVE HELP: Extensive help - Tap twice on most buttons for more info. Optimised for all iPhones and iPads in portrait mode. INFOGUIDE: Infoguide is part of a small building firm based in Western Australia. This app was created by a former Roof Framing Carpenter for our team of carpenters. We use it and believe it will be as helpful to other carpenters as it was for us. Terms of Service: http://www.apple.com/legal/itunes/appstore/dev/stdeula
Screenshots
Verdict
The clearest difference is price: Roof Guide at Free against StairBuilderPro's $4.99. Roof Guide also leads on rating (4.0 vs 3.2) and update cadence (every 2 weeks vs every 8 months). StairBuilderPro's advantage is in-app purchases (none vs 4) and iOS requirement (8.0 vs 26.0). On ads 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
Roof Guide is free to download; StairBuilderPro costs $4.99 up front. Roof Guide sells 4 in-app purchases, starting at $1.99 per month. StairBuilderPro asks for nothing beyond the download.
Roof Guide holds the better App Store score, 4.0 against 3.2. Both are backed by a comparable volume of ratings — 6 and 19 respectively. Written reviews point the same way: 56% of StairBuilderPro's written reviews are positive against 64% of Roof Guide's.
StairBuilderPro ships an update every 8 months, Roof Guide every 2 weeks. Both last shipped on November 1, 2026.
| Parameter | StairBuilderPro | Roof Guide |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.2 (6 ratings) | 4.0 (19 ratings) — better |
| Positive reviews | 55.6% of reviews | 63.6% of reviews — better |
| Number of ratings | 6 | 19 — better |
| Update frequency | Every 8 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 8.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 12 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Greg Gabrio | Infoguide Pty Ltd |
Customer experience
StairBuilderPro
Roof Guide
In-app purchases
StairBuilderPro
No in-app purchases
Roof Guide
- Monthly$1.991 Month
- 6 Months$7.996 Months
- Annual$12.991 Year
- Lifetime License$29.99
Questions
Is StairBuilderPro free?
Is Roof Guide free?
Which has better reviews, StairBuilderPro or Roof Guide?
Do StairBuilderPro or Roof Guide have ads?
Which is updated more often, StairBuilderPro or Roof Guide?
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