Comparison

inchCALC+ vs Pipe Trades Pro Calc

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

Pipe Trades Pro Calc

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

Highlights
  • Advanced measurement calculations
  • Fluid dynamics and pressure analysis
  • Comprehensive pipe data access
  • Offline functionality
  • User-centric interface
  • Material and dimension options
Features
Read full description

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Welcome to Pipe Trades Pro for iPhone, a game-changing tool for professionals in the pipe trades industry. This application is expertly designed to enhance the efficiency and accuracy of pipefitters, steamfitters, sprinklerfitters, and welders. From complex calculations to extensive pipe data, Pipe Trades Pro is your go-to solution for a streamlined work process. ----- ADVANCED CALCULATION CAPABILITIES ----- • Tackle complex measurements like cut lengths, take-outs, and odd-degree fittings easily • Navigate through right angles, offsets, and intricate rolling offsets confidently • Utilize tools for determining pipe areas, fill weights, and unit conversions • Efficiently manage parallel pipe cutbacks with accurate alignment and spacing • Incorporate feet-inch-fractions and trigonometry for precise measurement adjustments ----- FLUID DYNAMICS AND PRESSURE ANALYSIS ----- • Accurately compute flow rates, velocity, force, and volumes for diverse fluid types • Assess pressure loss effectively across any pipe size, type, or distance • Make informed decisions based on dynamic fluid properties and behaviors • Optimize piping systems for maximum flow efficiency and safety ----- COMPREHENSIVE PIPE DATA ACCESS ----- • Access vital information for pipes up to 42 inches, including diameters and wall thickness • Select from materials like steel, stainless steel, brass, aluminum, etc. • Quickly reference internal area and filled weight per foot for different pipe types • Make informed choices with extensive material and dimension options ----- USER-CENTRIC INTERFACE DESIGN ----- • Experience a streamlined, intuitive interface designed for quick and easy navigation • Access key features with minimal taps, saving time and enhancing user experience • Benefit from an interface that optimizes the iPhone’s screen space and usability • Enjoy a clutter-free, visually appealing layout for stress-free operation • Adapt quickly with an interface designed for both new and experienced users ----- OFFLINE FUNCTIONALITY AND SUPPORT ----- • Utilize full app capabilities without an internet connection, perfect for on-site tasks • Access all data and features offline, ensuring uninterrupted productivity • Rely on consistent app performance in remote or internet-challenged locations • Receive dedicated customer support for any queries or technical issues Pipe Trades Pro for iPhone is not just an application; it's a comprehensive tool transforming how pipe trade professionals work. It combines advanced technology, user-friendly design, and practical features to create a smoother, more efficient workflow. Embrace the future of pipe layout and design with Pipe Trades Pro, where accuracy meets efficiency. SUBSCRIPTION INFORMATION Your Free Trial period is free of charge. 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 Pipe Trades Pro is a trademark of Calculated Industries, Inc. Copyright 2025

Screenshots

inchCALC+4 screens
Pipe Trades Pro Calc4 screens

Verdict

The call

The clearest difference is price: Pipe Trades Pro Calc at Free against inchCALC+'s $4.99. Pipe Trades Pro Calc 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 6) and review sentiment (74% vs 43%). 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

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

ReceptionRating · Positive reviews · Number of ratings

Pipe Trades Pro Calc holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Pipe Trades Pro Calc has 4.4K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 74% of inchCALC+'s written reviews are positive against 43% of Pipe Trades Pro Calc's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

inchCALC+ ships an update every 2 months, Pipe Trades Pro Calc every 7 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard9 real differences · 2 level
inchCALC+ versus Pipe Trades Pro Calc: the parameters behind the verdict, then further details
ParameterinchCALC+Pipe Trades Pro Calc
Price$4.99Free — better
Rating3.7 (17 ratings)4.8 (4.4K ratings) — better
Positive reviews74.4% of reviews — better42.6% of reviews
Number of ratings174.4K — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#194 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better14.0
Further details — not scored
Size19 MB51 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%

Pipe Trades Pro Calc

All ratings4,379 ratings
Positive95.5%
Neutral1.2%
Negative3.2%
Written reviews108 reviews
Positive42.6%
Neutral11.1%
Negative46.3%

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

Pipe Trades Pro Calc

From 4.4K App Store ratings

What we love

  • 🔢 Useful calculator tool
  • 🧠 Helpful for pipe fitters and welders
  • 📱 Convenient to have on mobile device
  • 🔍 Accurate calculations

Room to improve

  • 💰 Subscription model is too expensive
  • 🔒 Requires internet connection to verify subscription
  • 🔄 Used to be a one-time purchase
  • 🤔 Confusing transition from one-time to subscription

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

Pipe Trades Pro Calc

Reported bugs

3 issues
  • App freezes or stops working after updates
  • Calculation errors with fractions
  • Issues with reinstalling or transferring purchases

Requested features

4 requests
  • Ability to use app without subscription
  • Support for larger pipe sizes
  • Add a back/undo button
  • Rotate screen orientation

In-app purchases

None

inchCALC+

No in-app purchases

2 purchases

Pipe Trades Pro Calc

Subscriptions2
  • 1 Month Full Access14 Days trial3 variants$4.991 Month
  • 1 Year Full Access14 Days trial3 variants$39.991 Year

Questions

Is inchCALC+ free?
inchCALC+ costs $4.99, with no in-app purchases.
Is Pipe Trades Pro Calc free?
Pipe Trades Pro Calc is free to download, with in-app purchases available.
Which has better reviews, inchCALC+ or Pipe Trades Pro Calc?
Pipe Trades Pro Calc is rated higher. inchCALC+ averages 3.7 out of 5 from 17 ratings, while Pipe Trades Pro Calc averages 4.8 from 4.4K ratings.
Do inchCALC+ or Pipe Trades Pro Calc have ads?
Neither inchCALC+ nor Pipe Trades Pro Calc shows ads.
Which is updated more often, inchCALC+ or Pipe Trades Pro Calc?
inchCALC+ ships an update every 2 months, and Pipe Trades Pro Calc every 7 months. Most recently, inchCALC+ was updated on October 24, 2026 and Pipe Trades Pro Calc on October 26, 2026.

Other comparisons