# Air System Modeling vs Novenco Fan

The clearest difference is update cadence: Air System Modeling at weekly against Novenco Fan's every 10 months. Air System Modeling also leads on iOS requirement (7.0 vs 15.0). 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.

Air System Modeling ships an update weekly, Novenco Fan every 10 months. The most recent releases landed on November 7, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Air System Modeling | Novenco Fan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/novenco-fan/id1319781531/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 months |
| Monetization | — | Free |
| Size | 219 MB | 57 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ingersoll Rand](https://appshunter.io/developer/482314546) | [NOVENCO Building & Industry A/S](https://appshunter.io/developer/1315561611) |

## What reviewers say

### Air System Modeling

[App page](https://appshunter.io/ios/app/air-system-modeling/id1081934192)

**Features:** macOS Compatibility

**In-app purchases:** none


### Novenco Fan

[App page](https://appshunter.io/ios/app/novenco-fan/id1319781531)

This app helps users quickly select high-efficiency axial fans and calculate fan performance at various working points. It also offers guides for fan retrofitting and allows exploration of products and case studies.

**Highlights:** Quick Selector for axial fans, Fan Law Calculator, Fan retrofitting guides, Product exploration, Case stories

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Air System Modeling free?

Air System Modeling is free to download, with no in-app purchases.

### Is Novenco Fan free?

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

### Do Air System Modeling or Novenco Fan have ads?

Neither Air System Modeling nor Novenco Fan shows ads.

### Which is updated more often, Air System Modeling or Novenco Fan?

Air System Modeling ships an update weekly, and Novenco Fan every 10 months. Most recently, Air System Modeling was updated on November 7, 2026 and Novenco Fan on November 2, 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.*