# Tiny Plumbing Calculators vs Engineering Calculator HVAC

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

Both are free to download. Tiny Plumbing Calculators sells 1 in-app purchase, starting at $9.99 per year. Engineering Calculator HVAC asks for nothing beyond the download.

## The numbers

| Metric | Tiny Plumbing Calculators | Engineering Calculator HVAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 38 MB | 19 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COREY J PAVESICH](https://appshunter.io/developer/1854485793) | [aleksandr bronnikov](https://appshunter.io/developer/1885003900) |

## What reviewers say

### Tiny Plumbing Calculators

[App page](https://appshunter.io/ios/app/tiny-plumbing-calculators/id6756802138)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tiny Plumbing Calculators Pro | $9.99 | per year |


### Engineering Calculator HVAC

[App page](https://appshunter.io/ios/app/engineering-calculator-hvac/id6760564633)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tiny Plumbing Calculators free?

Tiny Plumbing Calculators is free to download, with in-app purchases available.

### Is Engineering Calculator HVAC free?

Engineering Calculator HVAC is free to download, with no in-app purchases.

### Do Tiny Plumbing Calculators or Engineering Calculator HVAC have ads?

Neither Tiny Plumbing Calculators nor Engineering Calculator HVAC shows ads.

---

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