# HVAC Duct Calculator vs NESM Tools

The clearest difference is in-app purchases: NESM Tools at none against HVAC Duct Calculator's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HVAC Duct Calculator sells 1 one-off in-app purchase. NESM Tools asks for nothing beyond the download.

## The numbers

| Metric | HVAC Duct Calculator | NESM Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 8 MB | 50 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEP TASARIM MUHENDISLIK VE MUSAVIRLIK LIMITED SIRKETI](https://appshunter.io/developer/6780602473) | [Craig Danby](https://appshunter.io/developer/6795641237) |

## What reviewers say

### HVAC Duct Calculator

[App page](https://appshunter.io/ios/app/hvac-duct-calculator/id6780602471)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime VIP | $3.99 | one-time |


### NESM Tools

[App page](https://appshunter.io/ios/app/nesm-tools/id6795933641)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Duct Calculator free?

HVAC Duct Calculator is free to download, with in-app purchases available.

### Is NESM Tools free?

NESM Tools is free to download, with no in-app purchases.

### Do HVAC Duct Calculator or NESM Tools have ads?

Neither HVAC Duct Calculator nor NESM Tools shows ads.

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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.*