Comparison

Construction Calc Pro vs Chippy Tools

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

Head to head
About

Construction Calc Pro

This comprehensive calculator app is designed for construction professionals, offering specialized tools for measurements in feet, inches, and fractional inches. It includes modules for material estimates, conversions, area and volume calculations, trigonometry, and stair design, transforming your device into a powerful construction computer.

Highlights
  • Calculations in feet, inches, and fractional inches
  • Material estimation modules
  • Conversions for various units
  • Trigonometry and triangle solving
  • Stair and arc calculations
  • Fraction reduction and conversion
  • 50 memory slots
Features
Read full description

C-Calc Pro is a calculator app designed by, and for construction workers. Unlike a standard construction calculator C-Calc uses the power of the IPhone to create a construction computer. This full function calculator works as a standard calculator but more importantly allows you to work in feet, inches and fractional inches. The calculator also features several other modules for performing material estimates, crown moulding, conversions, area calculations and volume calculations, arcs and archs, trig and triangles, and stairwells and stairs. Contractors, architects, tradespersons, builders and even do it yourselfers will find this app ideal. Features include; - Add, subtract, multiply, divide, exponent, root and more with measurements in feet, inches, and fractional inches. - Reduce fractions and fractional inches to their lowest common denominator. - Convert decimal values to fractions and vice versa. - 50 memory slots to store, recall, add and subtract memory values. Memory values are shared between all modules as well. - Split screen shows result, memory, and measurement values all at once. - Calculate square footage and cubic footage easily. - Conversions for temperatures, distances, angles, areas and many more built in. - Help screen and full instructions included in program. - Estimate drywall, concrete, block, paint, tile, lumber and associated materials. - Transfer individual estimates to a running estimate sheet where you can keep track of your total as well as email the estimate to a man in the field, to yourself, or to the supplier. - Calculate surface areas and volumes of a large variety of shapes (including compound objects) for material estimates. - Crown moulding module built in which supports any spring angle and any wall angle. Actually see the saw settings on your phone. - Trigonometry calculator included for solving triangles, rise/run, rafters, slope, and more. Triangles are graphically mapped on your phone's screen to give a visual. - Advanced arc/circle calculator for solving arcs, radius, circumference, sector areas, sector angles, and circle areas. - Stair calculator for solving rise, run, unit rise, unit run, # of risers, # of treads, incline, stairwell opening, and stringer length. Drawings are to scale and may be easily printed or saved. Forget a bulky $100 calculator and simply buy the $10 app. The app will always be on your hip when you need it most instead of in the truck's glove compartment. C-Calc Pro has much more to offer in the coming months with free upgrades as well. We take our fellow tradesmen's opinions very seriously and the app will grow to reflect the people's opinion.

About

Chippy Tools

This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.

Highlights
  • Baluster spacing calculator
  • Flat run attached baluster calculator
  • Square calculator
  • Concrete calculator
  • Stair calculator
  • Supports millimeters, feet, and inches
Features
Read full description

Chippy Tools is the must-have calculator for carpenters and handy folks looking to simplify math on the job. Whether you're on your iPhone or iPad, Chippy Tools is for you. Its user-friendly design lets you focus on carpentry while the app handles the math. Perfect for architects, builders, carpenters, construction workers, contractors, designers, engineers, tradespeople, and woodworkers of all kinds, Chippy Tools speeds up common calculations with precision. Save time and cut costs by reducing site errors. WHAT IS A CHIPPY? In Australia, carpenters are often called Chippy. WHY CHIPPY TOOLS? Our mission at Chippy Tools is to redefine top-notch apps for carpenters. We aim to develop a sustainable business model, adding new calculations to keep saving you time and money. FEATURES • Baluster spacing calculator - Quickly calculate spacing for flat runs. • Flat run attached baluster calculator - Simple, fast calculations for attached balusters. • Supports millimeters, feet, and inches. PREMIUM FEATURES (Requires Subscription) • Square calculator - Ensure structures are perfectly square. • Concrete calculator - Calculate concrete needed for slabs and posts. • Dumpy level calculator - Find relative level from benchmarks. • Equal spacing calculator - Calculate even spacing effortlessly. • Gravel calculator - Determine gravel volume needed. • Pitch calculator - Calculate pitch with rise and run. • Raked wall calculator - Measure raked walls using height or pitch. • Running calculations - Enter start number and interval. • Soil calculator - Find soil volume for landscaping. • Stair calculator - Calculate going, stringer, and rise for stairs. • Triangle calculator - Solve triangle measurements with ease. FEEDBACK Want a new calculator? Email us at feedback@chippy.tools. NO ADS EVER We promise no ads in Chippy Tools. Enjoy the best experience for your purchase. SUPPORT Got questions or feedback? Contact us for free tech support at support@chippy.tools. If Chippy Tools aids you, please leave an App Store review to help others find it. Subscription Terms of Service: https://chippy.tools/terms/ Proudly made in Brisbane, Australia.

Screenshots

Construction Calc Pro4 screens
Chippy Tools4 screens

Verdict

The call

The clearest difference is price: Chippy Tools at Free against Construction Calc Pro's $13.99. Chippy Tools also leads on rating (4.5 vs 2.5) and ratings volume (907 vs 11). Construction Calc Pro's advantage is in-app purchases (none vs 10) and iOS requirement (8.0 vs 16.0). 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

Chippy Tools is free to download; Construction Calc Pro costs $13.99 up front. Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Construction Calc Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chippy Tools holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Chippy Tools has 907 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 42% of Construction Calc Pro's written reviews are positive against 55% of Chippy Tools's.

UpkeepUpdate frequency

Construction Calc Pro ships an update monthly, Chippy Tools every 8 days. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard8 real differences · 2 level
Construction Calc Pro versus Chippy Tools: the parameters behind the verdict, then further details
ParameterConstruction Calc ProChippy Tools
Price$13.99Free — better
Rating2.5 (11 ratings)4.5 (907 ratings) — better
Positive reviews42.1% of reviews54.8% of reviews — better
Number of ratings11907 — better
Update frequencyMonthlyEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better16.0
Further details — not scored
Size6 MB46 MB
Age rating4+4+
DeveloperSnappy Appz Inc.Peth Pty Ltd

Customer experience

Construction Calc Pro

All ratings11 ratings
Positive27.3%
Neutral18.2%
Negative54.5%
Written reviews19 reviews
Positive42.1%
Neutral15.8%
Negative42.1%

Chippy Tools

All ratings907 ratings
Positive88.5%
Neutral3.0%
Negative8.5%
Written reviews62 reviews
Positive54.8%
Neutral4.8%
Negative40.3%

Bugs and requests

Construction Calc Pro

Not enough reviews yet to summarise bugs or requests.

Chippy Tools

Reported bugs

2 issues
  • Square check feature not working
  • Measurements disappear after partial use

Requested features

4 requests
  • Add more construction-related calculators
  • Improve stair and rafter tools
  • Include material quantity estimations
  • Add support for metric and imperial units

In-app purchases

None

Construction Calc Pro

No in-app purchases

9 purchases

Chippy Tools

Subscriptions8
  • Chippy Tools Pro - Weekly1 Month trial$2.997 Days
  • Chippy Tools Pro - Weekly3 Days trial$3.997 Days
  • Chippy Tools Pro - Quarterly3 Months trial$4.993 Months
Show 5 more
  • Chippy Tools Pro - Monthly$5.991 Month
  • Chippy Tools Pro - Monthly1 Month trial$5.991 Month
  • Chippy Tools Pro - Annual3 Days trial$19.991 Year
  • Chippy Tools Pro - Annual1 Year trial$19.991 Year
  • Chippy Tools Pro - Annual$19.991 Year
One-time1
  • One Time Purchase2 variants$85.00

Questions

Is Construction Calc Pro free?
Construction Calc Pro costs $13.99, with no in-app purchases.
Is Chippy Tools free?
Chippy Tools is free to download, with in-app purchases available.
Which has better reviews, Construction Calc Pro or Chippy Tools?
Chippy Tools is rated higher. Construction Calc Pro averages 2.5 out of 5 from 11 ratings, while Chippy Tools averages 4.5 from 907 ratings.
Do Construction Calc Pro or Chippy Tools have ads?
Neither Construction Calc Pro nor Chippy Tools shows ads.
Which is updated more often, Construction Calc Pro or Chippy Tools?
Construction Calc Pro ships an update monthly, and Chippy Tools every 8 days. Most recently, Construction Calc Pro was updated on November 1, 2026 and Chippy Tools on November 7, 2026.

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