Comparison

inchCALC+ vs Measure Master Pro Calculator

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

Head to head
About

inchCALC+

This app is a professional-level calculator designed for working with feet, inches, and fractions, commonly used in construction and DIY projects. It simplifies complex calculations like addition, subtraction, multiplication, and division of these dimensions, transforming your device into a powerful measurement tool.

Highlights
  • Feet, inch, fraction calculations
  • Conversions to various units
  • Triangle function for rise, run, diagonal, pitch
  • Dual modes for simple and complex problems
  • Selective keyboard orientation
  • Built-in math functions (sqrt, square, pi, percent)
Features
Read full description

PRO LEVEL [FOOT • INCH • FRACTION] CALCULATOR MACWORLD **** "inchCALC+'s ease of use coupled with its advanced features make this an uncommonly good addition to a crowded genre." 3/9/09 inchCALC+ is a State-of-the-Art Construction Calculator / Conversion Calculator for people who work with the FEET• INCH• FRACTION dimensions used on common rulers and tape measures. These dimensions are shear drudgery when you have to manually add or subtract them --- let alone multiply, divide or convert to other measurement units. If you are a builder, contractor, sub-contractor, architect, engineer, artist, designer, student, homemaker or DIYer, you know the importance of working with accurate dimensions. inchCALC+ transforms your iPhone / iPod Touch into a FT• IN• FRACTION construction calculator that inputs and outputs dimensions exactly as they appear on a tape measure. Dedicated and held construction calculators with similar functions are very expensive. With inchCALC+ you can inexpensively perform the functions of those calculators on your iPhone / iPod Touch. Easy conversions to other measurement units: -FT• IN • FRACTION -IN • FRACTION -decimal inches -decimal feet -millimeters -centimeters -meters -kilometers -acres -yards -miles Built-in TRIANGLE FUNCTION -- Enter any two & inchCALC+ automatically solves for the other two: -rise -run -diagonal -pitch Selective Keyboard Orientation for Left Handed or Right Handed users DUAL MODES: -inchCALC for quickly working with simple measurements -inchCALC+™ for working with more complex problem solving -Built-in Functions: √2, X2, π, %, +/- See further details & User Guide on our website below:

About

Measure Master Pro Calculator

This app provides comprehensive U.S. and metric unit conversions and advanced calculations for design and building projects. It offers solutions for geometry, weight, and dimensional analysis, with a user-friendly interface and built-in help.

Highlights
  • Multi-dimensional unit conversion (U.S. & metric)
  • Advanced weight calculations
  • Geometry solutions (circle area, circumference)
  • Comprehensive dimensional analysis (linear, area, volume)
  • Cost per Unit function
  • Paperless tape for past calculations
  • Board Feet calculation
Features
Read full description

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. The Measure Master Pro app from Calculated Industries allows you to solve U.S. and metric unit conversions on your iPhone or iPad. Get professional results every time with this handy and easy-to-use tool for projects involving measurements. Ideal for Designers, Tradespersons, Woodworkers, Craftsmen, Fabricators, Technicians, and Students. ----- MULTI-DIMENSIONAL UNIT CONVERSION ----- • Convert between feet-inch-fractions, inch fractions, yards, and decimal feet and inches (10ths, 100ths) • Utilize full metric conversions, including meters, centimeters, and millimeters • Effortlessly switch between U.S. and metric units, ideal for international projects ----- ADVANCED WEIGHT CALCULATIONS ----- • Calculate weight in pounds, tons, metric tons, and kilograms • Determine weight per volume for materials management • Essential for accurate material estimation in construction and fabrication ----- GEOMETRY SOLUTIONS ----- • Instantly solve for circle area, circumference, and arc lengths • Ideal for designers and craftsmen working with circular designs • Enhance accuracy in geometrical calculations ----- COMPREHENSIVE DIMENSIONAL ANALYSIS ----- • Solve for linear, area, volume, and perimeter dimensions • Length, Width, and Height keys for quick calculations • Reduce errors in dimension estimation, crucial for tradespersons and technicians ----- USER-FRIENDLY INTERFACE ----- • Developed by the creators of the Construction Master(™) calculators • Input numbers as you would naturally say them • Built-in help with clear definitions, explanations, and examples ----- PRECISE MATH AND CONVERSION TOOLS ----- • Includes preset fractions from 1/2" to 1/64" for detailed work • Conversion capabilities for Decimal Degrees and D.M.S. • Comprehensive for all types of mathematical and conversion needs ----- DEDICATED FUNCTION KEYS ----- • Linear measurement keys for feet, inches, yards, meters, etc. • Area and Volume calculation keys for various units, including acres and cubic meters • Specialized keys for weight and weight per volume calculations ----- SPECIALIZED PROFESSIONAL FUNCTIONS ----- • Entry Editing Backspace Key for easy corrections • Cost per Unit function for simple pricing and cost analysis • Advanced Paperless Tape feature to review past calculations ----- CUSTOMIZATION AND MEMORY FEATURES ----- • Board Feet calculation function for woodworking projects • Customizable preferences to set user-specific options • Memory function to store and recall past calculations ----- INTUITIVE DESIGN AND HELP FEATURES ----- • Designed for ease of use by students, craftsmen, and professionals • Comprehensive help features for all functions • Streamlined interface for quick and easy calculations Whether you're a student, designer, tradesperson, or technician, this app is the perfect companion for all your measurement and conversion tasks. SUBSCRIPTION INFORMATION The first 7 days are free. Subscriptions offered will automatically renew at the end of the chosen period. Payment will be charged to your Apple account upon purchase confirmation. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Subscriptions. LEGAL Measure Master Pro is a trademark of Calculated Industries, Inc. Copyright 2024

Screenshots

inchCALC+4 screens
Measure Master Pro Calculator4 screens

Verdict

The call

The clearest difference is price: Measure Master Pro Calculator at Free against inchCALC+'s $4.99. Measure Master Pro Calculator also leads on rating (4.8 vs 3.7) and ratings volume (4.4K vs 17). inchCALC+'s advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 7 months). On review sentiment, 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

Measure Master Pro Calculator is free to download; inchCALC+ costs $4.99 up front. Measure Master Pro Calculator sells 2 in-app purchases, starting at $1.99 per month. inchCALC+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Measure Master Pro Calculator holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Measure Master Pro Calculator has 4.4K ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 74% of inchCALC+'s written reviews are positive against 81% of Measure Master Pro Calculator's.

UpkeepUpdate frequency

inchCALC+ ships an update every 2 months, Measure Master Pro Calculator every 7 months. Both last shipped on November 6, 2026.

Scorecard7 real differences · 3 level
inchCALC+ versus Measure Master Pro Calculator: the parameters behind the verdict, then further details
ParameterinchCALC+Measure Master Pro Calculator
Price$4.99Free — better
Rating3.7 (17 ratings)4.8 (4.4K ratings) — better
Positive reviews74.4% of reviews80.5% of reviews — better
Number of ratings174.4K — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size19 MB57 MB
Age rating4+12+
DeveloperRiver StudioCalculated Industries

Customer experience

inchCALC+

All ratings17 ratings
Positive70.6%
Neutral0.0%
Negative29.4%
Written reviews82 reviews
Positive74.4%
Neutral6.1%
Negative19.5%

Measure Master Pro Calculator

All ratings4,361 ratings
Positive96.8%
Neutral0.9%
Negative2.3%
Written reviews77 reviews
Positive80.5%
Neutral5.2%
Negative14.3%

User reviews

inchCALC+

From 17 App Store ratings

What we love

  • 👍 Excellent for feet and inches calculations
  • 👍 Great for metric/imperial conversion
  • 👍 Practical and easy to use
  • 👍 Replaces expensive physical calculators
  • 👍 Smooth calculations and easy unit conversion

Room to improve

  • 🐛 Crashes on newer iOS versions
  • 🐛 Not worth the money compared to free apps
  • 🐛 Missing simple but crucial features
  • 🐛 Outdated UI, not optimized for modern screens
  • 🐛 Buttons too small on landscape screen

Measure Master Pro Calculator

From 4.4K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Convenient and always available
  • 💯 Accurate and reliable
  • 🔧 Essential tool for construction professionals
  • ⚡ Fast and responsive

Room to improve

  • 🔒 Subscription model instead of one-time purchase
  • 🔍 Missing some key features like stair and diagonal calculations
  • 📱 UI could be improved, especially on iPad
  • 🐛 Occasional bugs and crashes reported

Bugs and requests

inchCALC+

Reported bugs

20 issues
  • Crashes on iOS 14.2
  • Does not recognize numbers 1, 2, 3 in landscape on mini2 retina
  • App freezes in landscape mode
  • Latest update does not download on iPhone 3GS
  • Not updated to fit any screen since iPhone 4
Show 15 more
  • Landscape view never starts up right on iPad
  • Blank borders on iPhone 6
  • Freezes in landscape mode
  • Crashing on 4.0
  • Right angle solver not great
  • Doesn't save in memory after closing
  • Always opens with a random number showing
  • Major bug: calc fix and stay after restarting
  • Rounding calculations with the 'diag' function
  • Pitch is read only in degrees
  • Cannot solve for RISE when RUN and PITCH are known
  • Area formulas are cut off at the bottom
  • Key lag
  • Key sound triggered by lifting finger, not initial touch
  • Slow flipping to advanced version with tilting

Requested features

28 requests
  • Add a tape-like function
  • Improve vertical calculator conversion settings
  • Add a history view option
  • Allow storing and further calculation with results
  • Add a backspace key
Show 23 more
  • Update UI for modern iOS versions
  • Optimize for larger screens (iPhone 6/6 Plus, iPad)
  • Add a desktop version
  • Add a CE (cancel entry) button in portrait mode
  • Allow pitch entry in inches/slope ratios, not just degrees
  • Add stair and roof functions
  • Add copy/paste function in display
  • Add constant storage or memory
  • Add ability to convert decimals to fractions and vice versa
  • Add clear entry for vertical calculator
  • Make buttons larger in horizontal mode
  • Add examples to website for complex calculations
  • Allow users to submit tips and tricks
  • Option to turn off key clicks or use standard iPhone click sound
  • Display remainder when dividing fractions or an 'R' indicator
  • Add a graph for pitch, rise, and run
  • Ability to convert from foot/inches to decimal without performing a calculation
  • Attach formulas to buttons with labels
  • Add more complicated formulas
  • Fix slow rotation between orientations
  • Fix scrolling to the bottom of information screens
  • Add area of circles or volumes of cylinders
  • Add intuitive interface for rafter diagonals

Measure Master Pro Calculator

Reported bugs

2 issues
  • Unable to download on iPhone after previous iPad purchase
  • Free trial screen gets stuck, preventing full app usage

Requested features

4 requests
  • Bring back the S.F. button
  • Add landscape mode support for iPad
  • Improve handling of large numbers
  • Integrate more advanced construction-specific functions

In-app purchases

None

inchCALC+

No in-app purchases

2 purchases

Measure Master Pro Calculator

Subscriptions2
  • 1 Month Full Access14 Days trial$1.991 Month
  • 1 Year Full Access14 Days trial$19.991 Year

Questions

Is inchCALC+ free?
inchCALC+ costs $4.99, with no in-app purchases.
Is Measure Master Pro Calculator free?
Measure Master Pro Calculator is free to download, with in-app purchases available.
Which has better reviews, inchCALC+ or Measure Master Pro Calculator?
Measure Master Pro Calculator is rated higher. inchCALC+ averages 3.7 out of 5 from 17 ratings, while Measure Master Pro Calculator averages 4.8 from 4.4K ratings.
Do inchCALC+ or Measure Master Pro Calculator have ads?
Neither inchCALC+ nor Measure Master Pro Calculator shows ads.
Which is updated more often, inchCALC+ or Measure Master Pro Calculator?
inchCALC+ ships an update every 2 months, and Measure Master Pro Calculator every 7 months. Most recently, inchCALC+ was updated on November 6, 2026 and Measure Master Pro Calculator on November 6, 2026.

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