Comparison

CDL Nano 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

CDL Nano

Features
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Mobile app for CDL Nano Monitoring System With CDL Nano app you will be able to control a pump, monitor vacuum and create automation according to a water tank level with CDL Nano control box

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
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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

CDL Nano1 screens
Construction Calc Pro 24 screens

Verdict

The call

The clearest difference is price: CDL Nano at Free against Construction Calc Pro 2's $13.99. CDL Nano also leads on iOS requirement (15.0 vs 17.5). Construction Calc Pro 2's advantage is chart position (#184 vs unranked). On update cadence, 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

CDL Nano 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.

UpkeepUpdate frequency

CDL Nano ships an update every 5 weeks, Construction Calc Pro 2 every 2 months. The most recent releases landed on September 9, 2026 and September 5, 2026 respectively.

Scorecard3 real differences · 8 level
CDL Nano versus Construction Calc Pro 2: the parameters behind the verdict, then further details
ParameterCDL NanoConstruction Calc Pro 2
PriceFree — better$13.99
Rating—4.5 (6 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
Best chart rank—#184 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.5
Further details — not scored
Size61 MB85 MB
Age rating4+4+
DeveloperLes Equipements d Erabliere CDL incSnappy Appz Inc.

In-app purchases

None

CDL Nano

No in-app purchases

None

Construction Calc Pro 2

No in-app purchases

Questions

Is CDL Nano free?
CDL Nano 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.
Do CDL Nano or Construction Calc Pro 2 have ads?
Neither CDL Nano nor Construction Calc Pro 2 shows ads.
Which is updated more often, CDL Nano or Construction Calc Pro 2?
CDL Nano ships an update every 5 weeks, and Construction Calc Pro 2 every 2 months. Most recently, CDL Nano was updated on September 9, 2026 and Construction Calc Pro 2 on September 5, 2026.

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