Home Builder Pro Calcs vs Stair Stringer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Home Builder Pro Calcs
This app provides over 440 construction and home improvement calculations, including cost and time estimates, and quantity take-offs. It supports U.S. imperial and metric measurements, and allows calculations to be saved and emailed.
- 440+ construction calculators
- Cost and time estimates
- Quantity take-offs
- Unit conversions
- Save and email calculations
- Decimal and fraction results
- U.S. imperial and metric support
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"Love this app makes my job much easier." - Danny O'Dea Thank you for your calculator suggestions. Now with 440 home improvement calculations and unit conversions Home Builder Pro Calcs gives you access to quickly and easily solve a variety of calculations including hours and cost estimates and take off quantities. Calculations can be saved and emailed. Easy to use and understand inputs and results in either decimals or fractions. Rich support for U.S., imperial, and metric measurements. Built-in calculator with support for ft/in and fractions. Current Calculators include: Business * 28 calculators for loans, pricing, travel costs, and more. Concrete & Paving * 11 calculators for asphalt, concrete, paver bricks, and more. Electrical * 5 different calculators Floors, Walls & Ceilings * 13 calculators for carpet, drywall, wall covering, tile, paint, and more. Foundations * 33 calculators for foundations, soil, grading, rebar, etc. Framing * 19 calculators for balusters, joists, studs, siding, stairs, and more Heating & A/C * 8 calculators for airflow, attics, fans, air conditions, insulation... Hours Estimates * Effort Factor * Over 55 different estimators for: * Carpentry - finish, siding, stairs, walls, ... * Concrete - blocks, bricks, concrete, reinforcement, tile, ... * Doors & Windows - garage doors, glass, metal, windows, wood, ... * Finishes - carpet, paint, wood floors, stucco, plaster, tile, .... * Roofing - roofing, sheathing, sheet metal, ... * Site Work - concrete demolition, excavation, stumps, trees, forms, culverts, landscape, ... Landscape & Yard * 15 calculators for fence, fertilizer, mulch, seeds, trees, mowing and more. Masonry * 8 calculators for walls, joints, core filling,... Miscellaneous * Area, Volume & Angle - 25 calculators for a variety of shapes. * Conversions - 26 different unit conversions * Glossary - Over 370 terms * 11 calculators for tanks, pulleys, weather, wrenches, ... Roof Framing and Roofing * 22 calculators for rafters, ridges, gables, pitch, trusses, shingles and more Wood & Materials * 20 calculators for lumber, nails, plywood, caulking, etc. You may also purchase add-on packs within the app. There are currently two add-ons available: Project Dates & Times * Over 35 calculators help you understand and manage project timing and deadlines. Sensor Angle * A set of 10 calculators that use the angle sensing ability of your iPhone or iPad to easily and accurate measure an angle and calculate a variety of other angles and lengths. Map Estimator * Estimate the distance and area using a map. Great for estimating size of yard, length of fence, etc. If there's a calculator you'd like to see added, visit our website and send us an email.
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 price: Stair Stringer at $1.99 against Home Builder Pro Calcs's $9.99. Stair Stringer also leads on update cadence (every 5 weeks vs every 3 months). Home Builder Pro Calcs's advantage is ratings volume (1.1K vs 86) and review sentiment (78% vs 67%). On rating, ads, in-app purchases 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
Home Builder Pro Calcs costs $9.99 and Stair Stringer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for Home Builder Pro Calcs against 4.7 for Stair Stringer. That said, the two scores are not equally well evidenced: Home Builder Pro Calcs has 1.1K ratings behind it against 86, so its average is the more settled of the two. Written reviews are what separate them: 78% of Home Builder Pro Calcs's written reviews are positive against 67% of Stair Stringer's.
Home Builder Pro Calcs ships an update every 3 months, Stair Stringer every 5 weeks. The most recent releases landed on September 30, 2026 and September 23, 2026 respectively.
| Parameter | Home Builder Pro Calcs | Stair Stringer |
|---|---|---|
| Price | $9.99 | $1.99 — better |
| Rating | 4.7 (1.1K ratings) | 4.7 (86 ratings) |
| Positive reviews | 78.1% of reviews — better | 66.7% of reviews |
| Number of ratings | 1.1K — better | 86 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 14.0 |
| Further details — not scored | ||
| Size | 21 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Calculated Industries | H3 Apps, LLC |
Customer experience
Home Builder Pro Calcs
Stair Stringer
Bugs and requests
Home Builder Pro Calcs
Reported bugs
4 issues- Incorrect rafter calculations
- Cannot delete tapes or history
- Calculator freezes on certain inputs
- Feet and inches input not working properly
Requested features
5 requests- Improved metric support
- More customization options
- Deck and fence calculators
- Better organization and navigation
- Tutorials and FAQs
Stair Stringer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Home Builder Pro Calcs
No in-app purchases
Stair Stringer
No in-app purchases
Questions
Is Home Builder Pro Calcs free?
Is Stair Stringer free?
Which has better reviews, Home Builder Pro Calcs or Stair Stringer?
Do Home Builder Pro Calcs or Stair Stringer have ads?
Which is updated more often, Home Builder Pro Calcs or Stair Stringer?
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