Comparison

Input Calculator vs Contractor Calc Pro

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

Head to head
About

Input Calculator

This app offers both basic and scientific calculation modes, supporting a wide range of operations including trigonometry and logarithms. It features a clear expression display, customizable themes, and haptic feedback for an enhanced user experience.

Highlights
  • Basic and scientific calculation modes
  • Trigonometric and logarithmic functions
  • Full expression display
  • Dark and light mode options
  • Haptic feedback on button press
  • Theme customization
  • Responsive layout for various devices
Features
Read full description

Basic Calculator Mode: -Perform basic arithmetic operations such as addition, subtraction, multiplication, and division. -Supports decimal operations and percentage calculations. -Clear (C) button to reset the calculator. Scientific Calculator Mode: -Toggle between Basic and Scientific modes. -In Scientific Mode, additional operations are available, including: -Trigonometric functions: sin, cos, tan -Logarithmic function: log -Constants: Pi (π), Euler’s Number (e) -Exponentiation (^) and Square Root (√). -The app allows easy switching between the two modes. Full Expression Display: -As users type their expressions (e.g., 2 + 3 * 5), the full expression is displayed at the top of the screen for clarity before calculating the result. Dark Mode & Light Mode: -Users can toggle between dark mode and light mode for better accessibility and comfort based on lighting conditions. Haptic Feedback: -Subtle haptic feedback is provided when buttons are pressed, enhancing the tactile experience of using the calculator. Theme Customization: -The app offers various color themes that users can cycle through, allowing them to personalize the look and feel of the calculator. Always Visible Scroll Bar: -The app features a persistent scroll bar on the right-hand side, even when content fits within the screen, ensuring a consistent user experience. Responsive Layout: -The app dynamically adjusts its layout based on screen size, ensuring it works smoothly across different devices, including phones and tablets.

About

Contractor Calc Pro

This app provides 20 essential construction calculators for instant material estimates with real costs. It offers fraction input, offline calculation, and the ability to save and export estimates as PDFs. Users can customize material prices for accurate local jobsite calculations.

Highlights
  • 20 essential construction calculators
  • Instant material estimates with real costs
  • Fraction input (5 1/2, 5' 6-1/2", decimals)
  • Offline calculation
  • Save and recall calculations by job name
  • Export professional PDF estimates
  • Customizable material prices
Features
Read full description

Stop juggling spreadsheets on the jobsite. Contractor Calc Pro puts 20 essential construction calculators in your pocket — instant material estimates with real costs. FREE CALCULATORS - Drywall Estimator — walls + ceiling sheets, screws, tape, mud & corner bead - Stair Calculator — rise, run, stringer length with IRC code pass/fail - Tap & Drill Chart — searchable UNC, UNF, Metric & NPT reference UNLOCK PRO ($4.99 one-time — no subscription, ever) - Gutter & Downspout — SMACNA sizing from roof area + rainfall - Insulation R-Value — IRC 2021 requirements by climate zone - Deck Materials — full BOM: boards, joists, posts, hardware, footings - Rebar Calculator — slab, footing & wall modes with cut list - Chimney & Flue — NFPA 211 flue sizing + materials - Septic System — tank, drain field & trench sizing by soil type - Spray Nozzle — GPA application rate + tank mix volumes - Board Feet — lumber volume and cost by species - Framing — stud count, plates, king/jack/cripple studs - Concrete — slab & pier volume, cubic yards, 60/80 lb bag counts - Roof Pitch — rafter length from pitch or angle - Roof Area — sloped surface from building footprint - Shingle Estimator — squares, bundles, underlayment, ridge cap - Hip/Valley Rafter — hip run, rafter length, jack common difference - Crown Moulding — compound miter angles for flat & nested cuts - Paint — gallons + primer from room dimensions - Fence — posts, pickets, rails & concrete for any fence run BUILT FOR THE JOBSITE - Fraction input — type 5 1/2, 5' 6-1/2", or decimals - Set your own material prices in Settings for accurate local estimates - Save calculations by job name — recall them anytime - Export professional PDF estimates to share with clients - Tap & Drill favorites — pin the sizes you use most - Calculate offline — no account, no tracking, no ads - Optional iCloud Drive backup — keep your estimates, quotes, and prices safe when you switch phones, all in your own iCloud (only you can see it) One payment. No subscription. No ads. No personal data collected — just anonymous usage diagnostics. Your estimates and quotes stay on your device, with optional backup to your own iCloud Drive that we never see.

Screenshots

Input Calculator4 screens
Contractor Calc Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Input Calculator at none against Contractor Calc Pro's 1. On price, rating, ratings volume and ads 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. Contractor Calc Pro sells 1 one-off in-app purchase. Input Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Input Calculator against 5.0 for Contractor Calc Pro. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard2 real differences · 8 level
Input Calculator versus Contractor Calc Pro: the parameters behind the verdict, then further details
ParameterInput CalculatorContractor Calc Pro
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS18.018.0
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperShafqat RahmanZIma Logistics LLC

Customer experience

Input Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Contractor Calc Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Input Calculator

No in-app purchases

1 purchases

Contractor Calc Pro

One-time1
  • Pro Unlock$4.99

Questions

Is Input Calculator free?
Input Calculator is free to download, with no in-app purchases.
Is Contractor Calc Pro free?
Contractor Calc Pro is free to download, with in-app purchases available.
Which has better reviews, Input Calculator or Contractor Calc Pro?
Input Calculator and Contractor Calc Pro are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Input Calculator or Contractor Calc Pro have ads?
Neither Input Calculator nor Contractor Calc Pro shows ads.

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