Comparison

Roof Guide vs StudPlan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

Roofing and framing carpentry calculator, decking, stairs, concrete, stud wall calculators. In additions 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 pro 's 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

About

StudPlan

Features
Read full description

Plan wall framing in seconds — wood or steel, straight or rake/gable — with full material takeoffs, client quotes, and cut lists ready for the job site. Built for iOS 17. No accounts. No analytics. No advertising. No tracking SDKs. 100% offline — every calculation runs on your phone, so it works in a basement or anywhere else with no signal. WHAT YOU CAN DO • FRAME A SINGLE WALL Enter length, height, and on-center spacing (12", 16", 19.2", or 24"). Choose 2x4 or 2x6 lumber. Get instant stud counts, plate lengths, board feet, wood volume, and wall area, with a live layout and your choice of end-stud configuration. Tap any field to type over it instantly. • STEEL FRAMING Cold-formed steel studs for non-load-bearing partitions — track and stud linear-foot takeoffs, gauge selection, and self-drilling screw counts. • RAKE, GABLE & ASYMMETRIC GABLE WALLS Enter a pitch (3:12 to 12:12, or custom) or low/high heights. Gable walls support a center or off-centre ridge with independent left/right slopes. Every stud comes out with its exact length and bevel angle, ready to cut. • DOORS, WINDOWS & CORNERS Drop in any opening with its rough opening size, and position it from the left edge, right edge, or center — one tap. King studs, jack studs, cripples, sills, and headers are calculated for you, including built-up trimmer posts for wide openings per IRC R602.7.5. • CUT LIST & MATERIAL TAKEOFF A full board-by-board takeoff — studs, plates, headers, blocking — per wall and across the project. Sheathing and drywall sheet counts, insulation coverage, and fastener estimates included. A buy list shows how many sticks of each market length to order, exportable as CSV. • 4×8 SHEET LAYOUT See exactly where OSB or plywood panels land on your wall. Edges on a stud are green; unsupported joins are flagged red before you start nailing. • FIXTURE BACKING Point-placed blocking for grab bars, TV mounts, and cabinets, each with its own board footage and diagram placement. • PRESETS One tap loads standard pre-cut heights (92-5/8", 104-5/8", 116-5/8"). Or save your own wall configuration once and reuse or update it on any wall. • MARK-OUT GUIDE A copy-ready list of measured positions along the plate — for marking studs on-site without re-counting. • MULTI-WALL PROJECTS Save framing jobs across multiple walls with intersection tracking (shared studs auto-deducted at T-junctions). Duplicate a wall or start the next one pre-filled with the last. Undo an accidental delete. Track totals: studs, plates, board feet, wood volume, wall area, and cost. • CLIENT QUOTE PDF & EXPORT A client-ready estimate with labor hours, material subtotal, markup, and tax — without exposing your cut list. Or export a full PDF with diagrams, cut lists, mark-out positions, and material summary. • IMPERIAL AND METRIC Feet-inches-fractions down to 1/8", or millimeters. Switch anytime without losing your project. • YOUR OWN iCLOUD SYNC Projects sync across your iPhone and iPad through your own iCloud account — optional, can be turned off in Settings. Never touches our servers; there are none. • IRC REFERENCE BUILT IN IRC R602.7 header sizing, bearing and point loads, nominal vs. actual lumber sizes, steel gauge-to-mil, common rough opening sizes, corner stud configurations, and roof pitch to angle conversions. PRIVACY FIRST StudPlan runs on-device. No login. No analytics. No advertising. No tracking SDKs. No camera, photo library, location, or microphone access requested. Turn on iCloud sync and your projects sync only through your own iCloud account — never through our servers, because we don't have any. 3-day free trial, then $1.99/week. Monthly, yearly, and lifetime options available. Cancel anytime. Terms of Use: https://taxlite.net/stud_plan/terms.html Privacy Policy: https://taxlite.net/stud_plan/privacy.html

Screenshots

Roof Guide4 screens
StudPlan4 screens

Verdict

The call

The clearest difference is iOS requirement: StudPlan at 17.0 against Roof Guide's 26.0. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Roof Guide sells 4 in-app purchases, starting at $1.99 per month and StudPlan sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Roof Guide ships an update monthly, StudPlan every 2 weeks. Both last shipped on September 17, 2026.

Scorecard1 real difference · 9 level
Roof Guide versus StudPlan: the parameters behind the verdict, then further details
ParameterRoof GuideStudPlan
PriceFreeFree
Rating3.9 (17 ratings) — better—
Positive reviews63.6% of reviews—
Number of ratings17 — better—
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size28 MB3 MB
Age rating4+4+
DeveloperInfoguide Pty LtdZHENGQIAO JIANG

In-app purchases

4 purchases

Roof Guide

Subscriptions3
  • Monthly$1.991 Month
  • 6 Months$7.996 Months
  • Annual$12.991 Year
One-time1
  • Lifetime License$29.99
4 purchases

StudPlan

Subscriptions3
  • Weekly$1.997 Days
  • Monthly$4.991 Month
  • Yearly$29.991 Year
One-time1
  • Lifetime$79.99

Questions

Is Roof Guide free?
Roof Guide is free to download, with in-app purchases available.
Is StudPlan free?
StudPlan is free to download, with in-app purchases available.
Do Roof Guide or StudPlan have ads?
Neither Roof Guide nor StudPlan shows ads.
Which is updated more often, Roof Guide or StudPlan?
Roof Guide ships an update monthly, and StudPlan every 2 weeks. Most recently, Roof Guide was updated on September 17, 2026 and StudPlan on September 17, 2026.

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