Comparison

Stair Calculator vs Polynomial Calculator

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 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

About

Polynomial Calculator

This application efficiently solves and simplifies polynomial expressions. It supports various operations like addition, subtraction, multiplication, division, factoring, and evaluation for algebraic functions. Ideal for students and professionals needing quick and accurate math solutions.

Highlights
  • Solve polynomial expressions
  • Simplify algebraic functions
  • Add, subtract, multiply, divide polynomials
  • Factor polynomials
  • Evaluate polynomials
  • Clean interface
  • Accurate results
Features
Read full description

A Polynomial Calculator app helps you quickly solve and simplify polynomial expressions with ease. Whether you’re working with basic equations or advanced algebraic functions, this tool lets you add, subtract, multiply, divide, factor, and evaluate polynomials in seconds. Designed for students, teachers, engineers, and math enthusiasts, the app offers a clean interface and accurate results for faster problem-solving. From homework to professional calculations, this polynomial calculator makes handling complex expressions simple and efficient. Perfect for Algebra, Calculus, and Engineering tasks—calculate smarter and save valuable time.

Screenshots

Stair Calculator3 screens
Polynomial Calculator4 screens

Verdict

The call

The clearest difference is price: Stair Calculator at Free against Polynomial Calculator's $3.99. Stair Calculator also leads on rating (4.1 vs 1.0) and ratings volume (740 vs 3). Polynomial Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.0). On ads 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

Stair Calculator is free to download; Polynomial Calculator costs $3.99 up front. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. Polynomial Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stair Calculator holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Stair Calculator has 740 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 21% of Stair Calculator's written reviews are positive against 0% of Polynomial Calculator's.

UpkeepUpdate frequency

Stair Calculator ships an update every 3 months, Polynomial Calculator every 10 months. Both last shipped on November 3, 2026.

Scorecard8 real differences · 2 level
Stair Calculator versus Polynomial Calculator: the parameters behind the verdict, then further details
ParameterStair CalculatorPolynomial Calculator
PriceFree — better$3.99
Rating4.1 (740 ratings) — better1.0 (3 ratings)
Positive reviews21.4% of reviews — better0.0% of reviews
Number of ratings740 — better3
Update frequencyEvery 3 months — betterEvery 10 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size1 MB20 MB
Age rating4+4+
DeveloperPhan Nhat ĐangKantaben Gorasiya

Customer experience

Stair Calculator

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

Polynomial Calculator

All ratings3 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and 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

Polynomial Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Stair Calculator

Subscriptions1
  • Annual Premium Package7 Days trial$9.991 Year
One-time1
  • Unlock all features$5.99
None

Polynomial Calculator

No in-app purchases

Questions

Is Stair Calculator free?
Stair Calculator is free to download, with in-app purchases available.
Is Polynomial Calculator free?
Polynomial Calculator costs $3.99, with no in-app purchases.
Which has better reviews, Stair Calculator or Polynomial Calculator?
Stair Calculator is rated higher. Stair Calculator averages 4.1 out of 5 from 740 ratings, while Polynomial Calculator averages 1.0 from 3 ratings.
Do Stair Calculator or Polynomial Calculator have ads?
Neither Stair Calculator nor Polynomial Calculator shows ads.
Which is updated more often, Stair Calculator or Polynomial Calculator?
Stair Calculator ships an update every 3 months, and Polynomial Calculator every 10 months. Most recently, Stair Calculator was updated on November 3, 2026 and Polynomial Calculator on November 3, 2026.

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