# Airdentifier vs Kilo Training Systems

The clearest difference is update cadence: Kilo Training Systems at monthly against Airdentifier's every 2 months. Airdentifier's advantage is iOS requirement (13.0 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.

Airdentifier ships an update every 2 months, Kilo Training Systems monthly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Airdentifier | Kilo Training Systems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 17 MB | 46 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Zehnder Group AG](https://appshunter.io/developer/1104291807) | [kilo training systems limited](https://appshunter.io/developer/1738491546) |

## What reviewers say

### Airdentifier

[App page](https://appshunter.io/ios/app/airdentifier/id6463730246)

**In-app purchases:** none


### Kilo Training Systems

[App page](https://appshunter.io/ios/app/kilo-training-systems/id6480216990)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Airdentifier free?

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

### Is Kilo Training Systems free?

Kilo Training Systems is free to download, with no in-app purchases.

### Do Airdentifier or Kilo Training Systems have ads?

Neither Airdentifier nor Kilo Training Systems shows ads.

### Which is updated more often, Airdentifier or Kilo Training Systems?

Airdentifier ships an update every 2 months, and Kilo Training Systems monthly. Most recently, Airdentifier was updated on October 3, 2026 and Kilo Training Systems on October 7, 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.*