Comparison

inchCALC+ vs Concrete Calculator Plus

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

Concrete Calculator Plus

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

Highlights
  • 15 concrete estimation calculators
  • Estimates cubic yards or bags
  • Calculates material costs
  • Supports various shapes (slabs, walls, columns)
  • Estimates rebar and gravel needs
  • Converts between units (inches, feet, meters)
Features
Read full description

15 concrete estimation calculators to estimate concrete in cubic yards or bags, with estimated material costs. Estimate concrete needed for a rectangular slab, circular slab, footing, circular columns or posts, poured walls, block walls, and steps. Estimate the number of blocks or CMUs to build a block wall, and estimate the material needed for a mortar mix. Estimate the amount of rebar for a slab and the gravel needed for the base. 15 Free Calculators: - Rectangular slab - Circular slab - Footing - Circular column - Poured wall - Steps - Post holes - Gravel - Asphalt - Block wall - Block fill - Mortar - Rebar Reinforcement - Mesh Reinforcement - Area - Volume Enter dimensions in inches, feet, yards, centimeters, or meters. Get results in US customary or metric measurements. Based on the calculators on Inch Calculator(www.inchcalculator.com) that are trusted by millions of people world-wide for material estimation.

Screenshots

inchCALC+4 screens
Concrete Calculator Plus4 screens

Verdict

The call

The clearest difference is price: Concrete Calculator Plus at Free against inchCALC+'s $4.99. Concrete Calculator Plus also leads on rating (4.8 vs 3.7) and ratings volume (26K vs 17). inchCALC+'s advantage is ads (none vs shown) and iOS requirement (8.0 vs 12.0). On in-app purchases 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

Concrete Calculator Plus is free to download; inchCALC+ costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Concrete Calculator Plus holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Concrete Calculator Plus has 26K 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 97% of Concrete Calculator Plus's.

UpkeepUpdate frequency

inchCALC+ ships an update every 2 months, Concrete Calculator Plus monthly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard8 real differences · 2 level
inchCALC+ versus Concrete Calculator Plus: the parameters behind the verdict, then further details
ParameterinchCALC+Concrete Calculator Plus
Price$4.99Free — better
Rating3.7 (17 ratings)4.8 (26K ratings) — better
Positive reviews74.4% of reviews97.2% of reviews — better
Number of ratings1726K — better
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size19 MB33 MB
Age rating4+4+
DeveloperRiver StudioCalc Hub, LLC

Customer experience

inchCALC+

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

Concrete Calculator Plus

All ratings21,295 ratings
Positive96.8%
Neutral2.0%
Negative1.2%
Written reviews72 reviews
Positive97.2%
Neutral1.4%
Negative1.4%

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

Concrete Calculator Plus

From 26K App Store ratings

What we love

  • 🚀 Easy to use
  • 🚀 Accurate calculations
  • 🚀 Convenient for on-the-go use
  • 🚀 Helpful for various projects
  • 👍 Straightforward and simple

Room to improve

  • 🔍 Limited features (no cost calculation, no 50 lb bag option)
  • 📱 Issues with display on some devices

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

Concrete Calculator Plus

Reported bugs

2 issues
  • Occasional loading issues
  • Difficulty reading total results on some devices

Requested features

2 requests
  • Finisher block cost calculation
  • Support for 50 lb concrete bag sizes

In-app purchases

None

inchCALC+

No in-app purchases

None

Concrete Calculator Plus

No in-app purchases

Questions

Is inchCALC+ free?
inchCALC+ costs $4.99, with no in-app purchases.
Is Concrete Calculator Plus free?
Concrete Calculator Plus is free to download, with no in-app purchases.
Which has better reviews, inchCALC+ or Concrete Calculator Plus?
Concrete Calculator Plus is rated higher. inchCALC+ averages 3.7 out of 5 from 17 ratings, while Concrete Calculator Plus averages 4.8 from 26K ratings.
Do inchCALC+ or Concrete Calculator Plus have ads?
Concrete Calculator Plus shows ads; inchCALC+ does not.
Which is updated more often, inchCALC+ or Concrete Calculator Plus?
inchCALC+ ships an update every 2 months, and Concrete Calculator Plus monthly. Most recently, inchCALC+ was updated on November 6, 2026 and Concrete Calculator Plus on November 8, 2026.

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