# Pneumatics vs iHR Emma

The clearest difference is update cadence: iHR Emma at every 4 days against Pneumatics's monthly. iHR Emma also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Pneumatics ships an update monthly, iHR Emma every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pneumatics | iHR Emma |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | — |
| Size | 4 MB | 58 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amnaj Sriwilai](https://appshunter.io/developer/1241468165) | [Thai V.P. Corporation Co.,Ltd.](https://appshunter.io/developer/1377460925) |

## What reviewers say

### Pneumatics

[App page](https://appshunter.io/ios/app/pneumatics/id1241653182)

This app offers essential calculation tools for pneumatic systems, aiding in automation system design and equipment selection. It helps users determine cylinder force, speed, air consumption, and estimate costs, streamlining work with pneumatic components.

**Highlights:** Cylinder force calculation, Force requirement estimation, Cylinder speed calculation, Air consumption calculation, Shock absorber analysis, Pressure and flow rate conversion, Hose diameter and piston rod diameter definition

**In-app purchases:** none


### iHR Emma

[App page](https://appshunter.io/ios/app/ihr-emma/id6759363879)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pneumatics free?

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

### Is iHR Emma free?

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

### Do Pneumatics or iHR Emma have ads?

Neither Pneumatics nor iHR Emma shows ads.

### Which is updated more often, Pneumatics or iHR Emma?

Pneumatics ships an update monthly, and iHR Emma every 4 days. Most recently, Pneumatics was updated on November 2, 2026 and iHR Emma on October 31, 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.*