Best Stair Calculator Apps

250+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated November 2026

Stair Calculator is the household name in stair calculator, but it's far from the only option. We track 250+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Compare top Stair Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Stair Calculator: ConstructionStair Calculator: ConstructionFree4.1β˜… (740)NoYesOct 2026
2Stair Calculator ProStair Calculator ProFree4.0β˜… (4)NoYesOct 2026
3RedX Stairs - 3D CalculatorRedX Stairs - 3D CalculatorFree4.5β˜… (426)NoYesNov 2026
4Stair Calculator: Both WaysStair Calculator: Both WaysFreeβ€”β€”NoSep 2026
5Construction Master Pro CalcConstruction Master Pro CalcFree4.8β˜… (41K)NoYesNov 2026
6StairPlan: Stair CalculatorStairPlan: Stair CalculatorFree5.0β˜… (2)NoYesNov 2026
7StairCalc: Stair CalculatorStairCalc: Stair CalculatorFree5.0β˜… (2)NoYesNov 2026
8Stair Calculator .Stair Calculator .Free4.0β˜… (4)YesYesOct 2026

Top Picks for Stair Calculator

Stair Calculator: Construction#1

Stair Calculator: Construction by Phan Nhat Đang

Step, Run, Rise, Angle, Length
Editor's Choice
πŸ”§ Utilities
4.1😞(740 ratings)
FreeIn-App Purchases
Stair Calculator: Construction screenshot 1
Stair Calculator: Construction screenshot 2
Stair Calculator: Construction screenshot 3

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.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Helpful information
  • πŸš€ Provides useful calculations

Room to Improve

  • πŸ› Doesn't work as expected
  • πŸ”’ No way to cancel subscription
  • πŸ”’ Difficult to cancel trial
  • 🀬 Obnoxious ads
  • 🀬 Misleading as a learning tool
Stair Calculator Pro#2

Stair Calculator Pro by Anna Filobok

Calculate in meter, cm, in, ft
Strong Contender
πŸ”§ Utilities
4.0(4 ratings)
FreeIn-App Purchases
Stair Calculator Pro screenshot 1
Stair Calculator Pro screenshot 2
Stair Calculator Pro screenshot 3
Stair Calculator Pro screenshot 4
Stair Calculator Pro screenshot 5
Stair Calculator Pro screenshot 6

This app quickly calculates stair dimensions like number of steps, total run, and stringer measurements. It supports real-time unit conversions between imperial and metric systems and includes a currency converter. Premium features require a subscription.

RedX Stairs - 3D Calculator#3

RedX Stairs - 3D Calculator by RedX Technology Inc

Design & Calculate Stairs
Worth Considering
πŸ”§ Utilities
4.5😞(426 ratings)
FreeIn-App Purchases
RedX Stairs - 3D Calculator screenshot 1
RedX Stairs - 3D Calculator screenshot 2
RedX Stairs - 3D Calculator screenshot 3
RedX Stairs - 3D Calculator screenshot 4
RedX Stairs - 3D Calculator screenshot 5

This app simplifies complex stair calculations and designs with advanced 3D visualization. It offers a comprehensive suite of calculators for various stair types, supporting multiple measurement units and providing detailed, to-scale plans for professionals and DIYers.

What We Love

  • πŸ‘ Great for pros and new users
  • πŸ’‘ Detailed project PDFs
  • πŸ’‘ Excellent for riser stairs
  • πŸ’‘ Handles complex stair designs
  • πŸ’‘ Useful for limited space
  • πŸ’‘ Easy to print designs
  • πŸ’‘ Clear cut lists and layouts

Room to Improve

  • πŸ‘Ž App gets stuck on opening screen
  • πŸ‘Ž Scam to charge $60
  • πŸ‘Ž Subscription expired, can't view/edit
  • πŸ‘Ž Expensive and missing options
  • πŸ‘Ž Paid for a year, lost work after canceling
  • πŸ‘Ž Does not do spiral staircases
  • πŸ‘Ž Can't use features without subscription
  • πŸ‘Ž Repeatedly redirects to subscription page
  • πŸ‘Ž Difficult to cancel
  • πŸ‘Ž Unaccessible without paying
  • πŸ‘Ž Charged immediately for trial
  • πŸ‘Ž Paid version has nothing
  • πŸ‘Ž Subscription waste of money
  • πŸ‘Ž Can't calculate small rises
  • πŸ‘Ž Money pit, Β£80/year
  • πŸ‘Ž Doesn't disclose monthly cost
  • πŸ‘Ž Over $40 per month
  • πŸ‘Ž Can't do anything without subscription
  • πŸ‘Ž All features cost subscription
  • πŸ‘Ž Useless without subscription
  • πŸ‘Ž Similar tools available for free
  • πŸ‘Ž New features slow and confusing
  • πŸ‘Ž 3D model too detailed for field

More Stair Calculator apps to explore

FAQ about Stair Calculator

What are the best stair calculator apps for iPhone?
Stair Calculator: Construction tops our stair calculator apps ranking as of November 2026, with a 4.1-star average from 740 App Store ratings, and it's free to download.
Yes β€” 18 of the top stair calculator apps we rank are free to download, including Stair Calculator: Construction and Stair Calculator Pro.
Stair Calculator: Construction has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ stair calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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