# Petrol Ofisi vs Düdüğüm

The clearest difference is monetization model: Düdüğüm at free against Petrol Ofisi's free with in-app purchases. Petrol Ofisi's advantage is ratings volume (522 vs 3). On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Petrol Ofisi against 4.7 for Düdüğüm. That said, the two scores are not equally well evidenced: Petrol Ofisi has 522 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 84% of Petrol Ofisi's written reviews are positive against 86% of Düdüğüm's.

Petrol Ofisi ships an update every 6 weeks, Düdüğüm every 2 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Petrol Ofisi | Düdüğüm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (522 ratings)](https://appshunter.io/ios/app/petrol-ofisi/id907009662/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/dudugum/id1538329721/reviews) |
| Number of ratings | **522** | 3 |
| Positive reviews | 83.9% of reviews | **86.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 31 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PETROL OFİSİ A.Ş.](https://appshunter.io/developer/1450633748) | [HDS OTOMASYON GUVENLIK VE YAZILIM TEKNOLOJILERI SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1523706871) |

## What reviewers say

### Petrol Ofisi

[App page](https://appshunter.io/ios/app/petrol-ofisi/id907009662)

This app provides access to exclusive offers, real-time fuel prices, and station locations. It allows users to pay for fuel directly from their vehicle and offers personalized discounts and surprise awards.

**Highlights:** Exclusive offers and personalized discounts, Real-time fuel price updates, Find nearest station and get directions, Contactless payment with Pay & Go, Station feedback and evaluation, Road trip song inspiration

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Petrol Ofisi free?

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

### Is Düdüğüm free?

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

### Which has better reviews, Petrol Ofisi or Düdüğüm?

Petrol Ofisi is rated higher. Petrol Ofisi averages 4.8 out of 5 from 522 ratings, while Düdüğüm averages 4.7 from 3 ratings.

### Do Petrol Ofisi or Düdüğüm have ads?

Neither Petrol Ofisi nor Düdüğüm shows ads.

### Which is updated more often, Petrol Ofisi or Düdüğüm?

Petrol Ofisi ships an update every 6 weeks, and Düdüğüm every 2 months. Most recently, Petrol Ofisi was updated on November 11, 2026 and Düdüğüm on November 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.*