Comparison

Custom Die Roller vs Construction Calc Pro 2

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

Head to head
About

Custom Die Roller

This app provides an easy and powerful way to roll virtual dice for various games and situations. It supports simple dice like d6 and complex expressions, even visualizing probability distributions with a bell curve.

Highlights
  • Rolls simple to complex dice expressions
  • Visualizes probability distributions
  • Supports arbitrary dice notation
  • Easy-to-use interface
  • Bell curve visualization
Features
Read full description

Ever out and about and you need some dice? Forgot your dice set when playing D&D? Custom Die Roller is an easy-to-use yet powerful way to roll some virtual dice. From a simple d6 to arbitrarily complex expressions in dice notation, the app can handle it all. Plus — visualize the probability distribution of your expression with the built-in bell curve!

About

Construction Calc Pro 2

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

Highlights
  • Calculations in feet, inches, and fractional inches
  • Material estimation modules
  • Conversions for various measurements
  • Area and volume calculations
  • Trigonometry and triangle solver
  • Stairwell and stair calculator
  • Crown moulding module
Features
Currently charting
Read full description

C-Calc Pro 2 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 arches, trig and triangles, and stairwells and stairs. Contractors, architects, tradespersons, builders and even do-it-yourselfers will find this app ideal. Features include: - Universal app runs on iPhone, iPad, and Mac. - 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. - Unlimited 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 $200 calculator and simply buy the 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 2 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.

Screenshots

Custom Die Roller3 screens
Construction Calc Pro 24 screens

Verdict

The call

The clearest difference is review sentiment: Custom Die Roller at 100% against Construction Calc Pro 2's 50%. Custom Die Roller also leads on price (Free vs $13.99) and rating (5.0 vs 4.5). Construction Calc Pro 2's advantage is chart position (#193 vs unranked). On ratings volume, ads, 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

Custom Die Roller is free to download; Construction Calc Pro 2 costs $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Custom Die Roller holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 100% of Custom Die Roller's written reviews are positive against 50% of Construction Calc Pro 2's.

UpkeepUpdate frequency

Custom Die Roller ships an update every 3 weeks, Construction Calc Pro 2 every 4 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

Scorecard7 real differences · 4 level
Custom Die Roller versus Construction Calc Pro 2: the parameters behind the verdict, then further details
ParameterCustom Die RollerConstruction Calc Pro 2
PriceFree — better$13.99
Rating5.0 (3 ratings) — better4.5 (6 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings36 — better
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#193 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.5 — better26.0
Further details — not scored
Size2 MB85 MB
Age rating4+4+
DeveloperSamuel GauckSnappy Appz Inc.

Customer experience

Custom Die Roller

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Construction Calc Pro 2

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Custom Die Roller

No in-app purchases

None

Construction Calc Pro 2

No in-app purchases

Questions

Is Custom Die Roller free?
Custom Die Roller is free to download, with no in-app purchases.
Is Construction Calc Pro 2 free?
Construction Calc Pro 2 costs $13.99, with no in-app purchases.
Which has better reviews, Custom Die Roller or Construction Calc Pro 2?
Custom Die Roller is rated higher. Custom Die Roller averages 5.0 out of 5 from 3 ratings, while Construction Calc Pro 2 averages 4.5 from 6 ratings.
Do Custom Die Roller or Construction Calc Pro 2 have ads?
Neither Custom Die Roller nor Construction Calc Pro 2 shows ads.
Which is updated more often, Custom Die Roller or Construction Calc Pro 2?
Custom Die Roller ships an update every 3 weeks, and Construction Calc Pro 2 every 4 months. Most recently, Custom Die Roller was updated on October 1, 2026 and Construction Calc Pro 2 on October 5, 2026.

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