# CDL Nano vs Construction Calc Pro 2

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.

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.

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.

## The numbers

| Metric | CDL Nano | Construction Calc Pro 2 |
| --- | --- | --- |
| Price | **Free** | $13.99 |
| Rating | — | **[4.5 (6 ratings)](https://appshunter.io/ios/app/construction-calc-pro-2/id6446281301/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Paid |
| Best chart rank | — | **#184** |
| Size | 61 MB | 85 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Les Equipements d Erabliere CDL inc](https://appshunter.io/developer/1282400673) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### CDL Nano

[App page](https://appshunter.io/ios/app/cdl-nano/id1668891007)

**Features:** Vision Pro support

**In-app purchases:** none


### Construction Calc Pro 2

[App page](https://appshunter.io/ios/app/construction-calc-pro-2/id6446281301)

**Currently charting:** #184 Top Paid · Utilities (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*