# Düdüğüm vs OltuAVM

The clearest difference is device support: Düdüğüm at 3 against OltuAVM's —. OltuAVM's advantage is iOS requirement (12.0 vs 15.6). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Düdüğüm | OltuAVM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/dudugum/id1538329721/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 31 MB | 32 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [HDS OTOMASYON GUVENLIK VE YAZILIM TEKNOLOJILERI SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1523706871) | [Volkan Adiguzel](https://appshunter.io/developer/1775388952) |

## What reviewers say

### Düdüğüm

[App page](https://appshunter.io/ios/app/dudugum/id1538329721)

This app generates a whistle sound to signal your location in emergencies or when trapped. It can also send an SMS to pre-selected contacts to inform them of your safety status. The application is free and ad-free, developed for humanitarian purposes.

**Highlights:** Generates whistle sound, Sends location SMS, Pre-set contact alerts, Ad-free experience, Humanitarian purpose

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

**In-app purchases:** none


### OltuAVM

[App page](https://appshunter.io/ios/app/oltuavm/id6475365554)

**In-app purchases:** none


## Frequently asked questions

### Is Düdüğüm free?

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

### Is OltuAVM free?

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

---

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