Comparison

Construction Calc Pro Lite vs Stair Calculator

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

Head to head
About

Construction Calc Pro Lite

This calculator app is designed for construction professionals, offering specialized functions for measurements in feet, inches, and fractional inches. It includes modules for material estimates, conversions, area and volume calculations, trigonometry, and stair design, transforming your device into a construction computer.

Highlights
  • Feet, inches, and fractional inch measurements
  • Material estimation modules
  • Area and volume calculations
  • Trigonometry and triangle solver
  • Stair and crown moulding calculators
  • Fraction reduction and conversion
  • Estimate transfer and email
Features
Read full description

Construction Calc Pro turns your device into an advanced jobsite computer. Built specifically for contractors, builders, carpenters, and project supervisors, it combines full fractional-inch dimensional math with integrated material takeoffs and project estimation sheets. Eliminate expensive standalone handhelds—run your framing cuts, stair layouts, material orders, and job estimates right from your pocket. CORE DIMENSIONAL MATH & CONVERSIONS - Calculate in feet, inches, and fractional inches down to 1/64 inch - Full math support: Add, subtract, multiply, divide, powers, and square roots with mixed units - Instant conversions: Fractions to decimals, square and cubic footage, metric to imperial, angles, and temperatures - Automatic fraction reduction to lowest common denominators - Split-screen view displays active calculations, measurements, and memory registers simultaneously - 50 shared memory registers accessible across all specialized modules PROJECT ESTIMATION & MATERIAL TAKEOFFS - Instant takeoffs for concrete pours, block walls, drywall sheets, paint, tile, and lumber - Calculate surface areas and volumes for standard, angled, and complex compound shapes - Export to a running job estimate sheet to tally project totals - Email itemized takeoffs directly to clients, suppliers, or your crew right from the site ROOF, STAIRS & STRUCTURAL LAYOUT - Stairs & Stringers: Solve total rise, run, unit rise, unit run, riser and tread counts, stringer length, and minimum stairwell openings with scale-drawn diagrams - Rafters & Framing: Integrated right-angle trigonometry solves slope, pitch, common rafters, hips, and valleys with visual graphic feedback - Crown Moulding: Calculate precise miter and bevel saw settings for any wall angle and any spring angle - Arcs & Circles: Solve radius, circumference, sector area, arc length, and segments fast Designed for professional trades who need reliable, jobsite-tested calculations without ads, subscriptions, or bulky handheld devices. Built-in help guides and instructions included for every module.

About

Stair Calculator

This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.

Highlights
  • Calculate stair construction parameters
  • Flexible input for Run or Total Run
  • Determine largest and smallest step sets
  • Support for various units
  • Copy results to clipboard
Features
Read full description

Stair Calculator helps you calculate and compare staircase dimensions. FEATURES • Calculate using Run, Total Run, or Stair Angle • Enter a specific number of Runs or explore all calculated options • Support Metric and Imperial units • View detailed measurements and stair diagrams • Export results as a PDF or image • Copy results to the clipboard IMPORTANT Results are generated based on user-provided values and general calculation models. The app is intended for reference and educational purposes only. Please verify all measurements, local building requirements, and safety standards before actual construction. SUBSCRIPTION This subscription package offers unlimited access to all app features throughout the subscription period. • Payment will be charged to your Apple Account at confirmation of purchase. • The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your Apple Account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be identified. • Subscriptions may be managed and auto-renewal may be turned off in your Apple Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. PRIVACY POLICY https://13520178.github.io/StairCalc/policy.html TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ CONTACT If you have any questions or suggestions, please contact us. Email: phannhatd@gmail.com

Screenshots

Construction Calc Pro Lite4 screens
Stair Calculator3 screens

Verdict

The call

The clearest difference is rating: Construction Calc Pro Lite at 4.8 against Stair Calculator's 4.1. Construction Calc Pro Lite also leads on in-app purchases (none vs 2). Stair Calculator's advantage is ads (none vs shown) and ratings volume (740 vs 5). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. Construction Calc Pro Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Construction Calc Pro Lite holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Stair Calculator has 740 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 10% of Construction Calc Pro Lite's written reviews are positive against 21% of Stair Calculator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Construction Calc Pro Lite versus Stair Calculator: the parameters behind the verdict, then further details
ParameterConstruction Calc Pro LiteStair Calculator
PriceFreeFree
Rating4.8 (5 ratings) — better4.1 (740 ratings)
Positive reviews9.5% of reviews21.4% of reviews — better
Number of ratings5740 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size89 MB1 MB
Age rating4+4+
DeveloperSnappy Appz Inc.Phan Nhat Đang

Customer experience

Construction Calc Pro Lite

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive9.5%
Neutral0.0%
Negative90.5%

Stair Calculator

All ratings738 ratings
Positive77.2%
Neutral5.0%
Negative17.8%
Written reviews28 reviews
Positive21.4%
Neutral7.1%
Negative71.4%

Bugs and requests

Construction Calc Pro Lite

Not enough reviews yet to summarise bugs or requests.

Stair Calculator

Reported bugs

2 issues
  • Subscription numbers don't add up
  • Doesn't provide promised features after purchase

Requested features

3 requests
  • Option to uninstall app
  • Ability to calculate run based on rise and landing space
  • Provide more detailed diagrams and visuals

In-app purchases

None

Construction Calc Pro Lite

No in-app purchases

2 purchases

Stair Calculator

Subscriptions1
  • Annual Premium Package7 Days trial$9.991 Year
One-time1
  • Unlock all features$5.99

Questions

Is Construction Calc Pro Lite free?
Construction Calc Pro Lite is free to download, with no in-app purchases.
Is Stair Calculator free?
Stair Calculator is free to download, with in-app purchases available.
Which has better reviews, Construction Calc Pro Lite or Stair Calculator?
Construction Calc Pro Lite is rated higher. Construction Calc Pro Lite averages 4.8 out of 5 from 5 ratings, while Stair Calculator averages 4.1 from 740 ratings.
Do Construction Calc Pro Lite or Stair Calculator have ads?
Construction Calc Pro Lite shows ads; Stair Calculator does not.
Which is updated more often, Construction Calc Pro Lite or Stair Calculator?
Construction Calc Pro Lite ships an update every 3 months, and Stair Calculator every 3 months. Most recently, Construction Calc Pro Lite was updated on November 1, 2026 and Stair Calculator on November 3, 2026.

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