Comparison

Stair Calculator . vs StringerPro

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

Head to head
About

Stair Calculator .

This app assists construction professionals and DIYers in accurately calculating stair dimensions. It provides instant results for step count, rise, run, angle, and stringer length, with visual previews to aid in planning and building.

Highlights
  • Stair step calculator
  • Rise and run calculator
  • Stringer length calculator
  • Visual stair diagram
  • 3D stair previews
  • Metric and imperial support
Features
Read full description

Build stairs with confidence using Stair Calculator, a professional construction tool designed for carpenters, contractors, deck builders, and DIY renovators. Whether you need a stair stringer calculator, a stair tread calculator, or a stair rise and run calculator, this app helps you quickly plan accurate stair dimensions from a few simple inputs. Enter the total rise, target riser height, and tread depth to get instant results for step count, exact riser height, total run, stair angle, and stringer length. Stair Calculator is built for real jobsite use with large controls, clear results, and visual previews that make layout easier to understand. Core Features: Stair step calculator for fast stair planning Stair rise and run calculator with instant dimension updates Stair stringer calculator for accurate stringer length output Stair calculator with diagram for quick visual understanding Elevation, plan, and interactive 3D stair previews Metric and imperial support Outdoor-friendly, clean professional interface Use It For: Deck stairs calculator projects Interior stair planning Stair calculator with landing layouts Spiral staircase calculator needs Measuring stairs before cutting or building Figuring stair stringers on-site Calculating stringers for stairs during planning and framing Calculate stringer for steps with faster workflow General stairs computation for residential projects Calculated Results: Number of steps Number of treads Exact riser height Tread depth Total run Stair angle Stringer length Visual Preview Tools See your stair in multiple ways: Elevation preview for straight stairs Plan preview for landing and turning stairs Interactive 3D preview for better visualization Full-screen preview mode for detailed inspection Pro Features: Upgrade to unlock advanced workflow tools: L-shape stairs U-shape stairs Spiral stairs PDF export Project history Adjustable tread thickness Stringer cut diagram Ad-free experience Stair Calculator helps simplify measuring stairs, planning layouts, and checking dimensions before you cut. From deck builds to interior renovations, it gives you the fast answers you need in a format that is easy to read and easy to trust. Privacy Policy: https://asarulabs.com/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

StringerPro

Features
Read full description

StringerPro turns total rise and total run into a code-checked, ready-to-cut stair stringer layout. Built for finish carpenters, framers and deck builders who want one tool that does the stringer job properly, including the bottom step. KEY FEATURES - Fraction-native input. Feet, whole inches and a sixteenths picker that works the way a construction calculator does. Common stops (0, 1/4, 1/2, 3/4) are one tap. - IRC R311.7 code validation. Live green / amber / red badges for riser height (max 7-3/4"), tread depth (min 10"), riser variance, 2x12 throat (min 3-1/2"), comfort (rise plus tread), and pitch angle. - The bottom step handled correctly. The bottom riser is automatically shortened by the tread thickness so walking rises stay uniform once treads are installed, a common source of uneven steps. - Side-view diagram with every dimension labelled. A clean 2D elevation that prints legibly. - Framing-square cut sheet. Step-by-step heel positions along the top edge of the 2x12, with rise leg and run leg dimensions for every notch, plus the seat and plumb end cuts. - 1:1 print template. Tile the side view across letter pages at full scale, tape them together and trace straight onto the 2x12. Crop marks on every corner. - Material estimator. Enter stringer count, stair width and lumber prices; get linear footage and total job cost, fasteners included. - Saved jobs with job name, address and notes. - Deck stair mode, which marks the job as a deck stair on the summary sheet. Set deck-board tread stock and nosing on the inputs screen. - Imperial and metric, in light and dark appearance. - Works entirely offline. No account and no sign-in. - No ads and no tracking. The standard tier shows a small banner for our website service for trade businesses; Premium hides it. PREMIUM UNLOCK (one-time purchase, not a subscription) - Unlimited saved jobs - All three PDF exports: summary, cut sheet and 1:1 print template - Material estimator - Hides the website banner - Priority support DISCLAIMER Verify all measurements before cutting. Output is for estimation only. Local building codes vary. Contact: support@clearstackapps.com Privacy: https://clearstackapps.com/privacy

Screenshots

Stair Calculator .4 screens
StringerPro4 screens

Verdict

The call

The clearest difference is ads: StringerPro at none against Stair Calculator .'s shown. On price, in-app purchases, device support and iOS requirement 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 3 in-app purchases, starting at $1.49 per 7 days and StringerPro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
Stair Calculator . versus StringerPro: the parameters behind the verdict, then further details
ParameterStair Calculator .StringerPro
PriceFreeFree
Rating4.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequency—Monthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size16 MB6 MB
Age rating4+4+
DeveloperAsaru Labs LTDClearStack Apps

In-app purchases

3 purchases

Stair Calculator .

Subscriptions3
  • Premium Version$1.497 Days
  • Premium Version$3.991 Month
  • Premium Version$19.991 Year
1 purchases

StringerPro

One-time1
  • StringerPro Premium$5.99

Questions

Is Stair Calculator . free?
Stair Calculator . is free to download, with in-app purchases available.
Is StringerPro free?
StringerPro is free to download, with in-app purchases available.
Do Stair Calculator . or StringerPro have ads?
Stair Calculator . shows ads; StringerPro does not.

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