# airTool vs ARI myCalc

airTool and ARI myCalc are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | airTool | ARI myCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ari-mycalc/id6790340266/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | — | Free |
| Size | 17 MB | 71 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [maennchen1.de <Roger Rehnelt>](https://appshunter.io/developer/460800416) | [ARI Armaturen](https://appshunter.io/developer/1570250150) |

## What reviewers say

### airTool

[App page](https://appshunter.io/ios/app/airtool/id463173545)

**Features:** macOS Compatibility

**In-app purchases:** none


### ARI myCalc

[App page](https://appshunter.io/ios/app/ari-mycalc/id6790340266)

This engineering calculation app provides tools for steam, water, and condensate systems. It offers pipe sizing, property lookups, Kv calculations, and unit conversions for field use and project work. Results can be saved, exported, and accessed via calculation history.

**Highlights:** Steam and water pipe sizing, Steam property lookup, Kv calculations, Unit conversion, Calculation history, PDF, CSV, JSON export

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

**In-app purchases:** none


## Frequently asked questions

### Is airTool free?

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

### Is ARI myCalc free?

ARI myCalc is free to download, with no in-app purchases.

### Do airTool or ARI myCalc have ads?

Neither airTool nor ARI myCalc 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.*