inchCALC+ vs Construction Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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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:
Construction Calculator
This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.
- Decimal to fraction converter
- Fraction to decimal conversion
- Simultaneous equation and result display
- Advanced editing capabilities
- Today Screen integration
- Support for multiple dimensional formats
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Award Winning Feet Inch Fraction Construction Calculator for iPhone and iPad. Designed with simplicity, usability and beauty in mind! FEATURES: - Elegant & Intuitive interface - Decimal to fraction converter - Fraction to decimal conversion - Displays both the equation & the result at the same time - Advanced editing by easily going back and forth - Can be added to Today Screen Ideal for those who work in construction, woodworking and for students to check up their homework! If you are looking for more advanced features you can upgrade to one or more of the following: - Stairs Calculator - Common Rafter Calculator - Hip/Valley Rafter Calculator - Triangle Calculator - Circular Calculator - Arc Calculator - Work in and convert between all building dimensional formats: feet-inch-fractions, inch fraction, yards, decimal feet (10th, 100th), decimal inches and metric (km, m, cm, mm) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Construction Calculator at Free against inchCALC+'s $4.99. Construction Calculator also leads on rating (4.7 vs 3.7) and update cadence (every 6 days vs every 2 months). inchCALC+'s advantage is in-app purchases (none vs 9) and review sentiment (74% vs 54%). 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
Construction Calculator is free to download; inchCALC+ costs $4.99 up front. Construction Calculator sells 8 in-app purchases, starting at $4.99 per month. inchCALC+ asks for nothing beyond the download.
Construction Calculator holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Construction Calculator has 625 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 54% of Construction Calculator's, so the app with the better star average is not the one people write more warmly about.
inchCALC+ ships an update every 2 months, Construction Calculator every 6 days. Both last shipped on October 16, 2026.
| Parameter | inchCALC+ | Construction Calculator |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.7 (17 ratings) | 4.7 (625 ratings) — better |
| Positive reviews | 74.4% of reviews — better | 53.7% of reviews |
| Number of ratings | 17 | 625 — better |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 19 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | River Studio | xNeat.com |
Customer experience
inchCALC+
Construction Calculator
User reviews
inchCALC+
From 17 App Store ratingsWhat 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
Construction Calculator
From 625 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Quick and accurate calculations
- 💡 Helpful for construction work
- 🎨 Customizable colors
Room to improve
- 💰 Subscription model is too expensive
- 🔒 Paywall locks out useful features
- 🔄 Forced updates break existing functionality
- 🤯 Confusing and difficult to navigate
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
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- 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
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- 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
Construction Calculator
Reported bugs
3 issues- Calculation errors and incorrect results
- Freezing and crashing on certain devices
- Compatibility issues with newer OS versions
Requested features
4 requests- Bring back fraction display in results
- Allow offline use without subscription
- Add more construction-specific tools
- Improve user interface and usability
In-app purchases
inchCALC+
No in-app purchases
Construction Calculator
- Construction Calculator3 Days trial$4.991 Month
- Construction Calculator7 Days trial$39.991 Year
- Themes$1.99
- Calculator Plus$3.99
- Rafter$4.99
Show 3 moreShow fewer
- Stair Calculator$4.99
- Fraction Calculator$9.99
- Construction Calculator2 variants$14.99
Questions
Is inchCALC+ free?
Is Construction Calculator free?
Which has better reviews, inchCALC+ or Construction Calculator?
Do inchCALC+ or Construction Calculator have ads?
Which is updated more often, inchCALC+ or Construction Calculator?
Other comparisons
