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Best Free Stair Calculator Apps

250+ iOS apps curated and reviewed

4.2 avg rating
17 free apps
Updated November 2026

Finding the right free stair calculator apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Free Stair Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1StairPlan: Stair CalculatorStairPlan: Stair CalculatorFree5.0★ (1)NoYesOct 2026
2Stair Calculator ProStair Calculator ProFree4.0★ (4)NoYesOct 2026
3Stair Calculator .Stair Calculator .Free4.0★ (4)YesYesOct 2026
4RedX Stairs - 3D CalculatorRedX Stairs - 3D CalculatorFree4.5★ (424)NoYesNov 2026
5Stair Calculator PlusStair Calculator Plus$2.993.0★ (18)NoNoOct 2026
6StairMark: Stair CalculatorStairMark: Stair CalculatorFree—NoYesOct 2026
7Stair Stringer Calculator ProStair Stringer Calculator ProFree—NoYesOct 2026
8Stair Calculator: Run & RiseStair Calculator: Run & RiseFree4.2★ (46)YesYesOct 2026

Top Picks for Free Stair Calculator

StairPlan: Stair Calculator#1

StairPlan: Stair Calculator by ZHENGQIAO JIANG

Rise, Run, Stringer & Tread
Editor's Choice
🔧 Utilities
5.0(1 ratings)
FreeIn-App Purchases
StairPlan: Stair Calculator screenshot 1
StairPlan: Stair Calculator screenshot 2
StairPlan: Stair Calculator screenshot 3
StairPlan: Stair Calculator screenshot 4
StairPlan: Stair Calculator screenshot 5

Calculate staircase dimensions and check them against building codes. Supports various stair types and offers AR measurement, 3D previews, and exportable diagrams. Save unlimited projects offline.

Stair Calculator Pro#2

Stair Calculator Pro by Anna Filobok

Calculate in meter, cm, in, ft
Strong Contender
🔧 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.

Stair Calculator .#3

Stair Calculator . by Asaru Labs LTD

stair stringer calculator
Worth Considering
🔧 Utilities
4.0(4 ratings)
FreeAdsIn-App Purchases
Stair Calculator . screenshot 1
Stair Calculator . screenshot 2
Stair Calculator . screenshot 3
Stair Calculator . screenshot 4
Stair Calculator . screenshot 5
Stair Calculator . screenshot 6

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.

More Free Stair Calculator apps to explore

FAQ about Free Stair Calculator

What are the best free stair calculator apps for iPhone?
StairPlan: Stair Calculator tops our free stair calculator apps ranking as of November 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
StairPlan: Stair Calculator has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ free stair calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.