# AVIN Κερδίζω App vs Comtel Sirens

The clearest difference is update cadence: Comtel Sirens at every 2 days against AVIN Κερδίζω App's every 5 weeks. Comtel Sirens also leads on iOS requirement (13.4 vs 16.0). 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.

AVIN Κερδίζω App ships an update every 5 weeks, Comtel Sirens every 2 days. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | AVIN Κερδίζω App | Comtel Sirens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/avin-app/id1301194302/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 50 MB | 67 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AVIN Oil S.A.](https://appshunter.io/developer/1301194301) | [ProgressNet](https://appshunter.io/developer/1509775083) |

## What reviewers say

### AVIN Κερδίζω App

[App page](https://appshunter.io/ios/app/avin-app/id1301194302)

Earn rewards every time you refuel with this loyalty program app. Easily manage your points, redeem gift vouchers, and discover exclusive offers. Find nearby stations and order heating oil.

**Highlights:** Create and link loyalty cards, Track points and transactions, Redeem gift vouchers, Find AVIN stations, View current offers, Order heating oil

**Features:** Vision Pro support

**In-app purchases:** none


### Comtel Sirens

[App page](https://appshunter.io/ios/app/comtel-sirens/id6739497084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AVIN Κερδίζω App free?

AVIN Κερδίζω App is free to download, with no in-app purchases.

### Is Comtel Sirens free?

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

### Do AVIN Κερδίζω App or Comtel Sirens have ads?

Neither AVIN Κερδίζω App nor Comtel Sirens shows ads.

### Which is updated more often, AVIN Κερδίζω App or Comtel Sirens?

AVIN Κερδίζω App ships an update every 5 weeks, and Comtel Sirens every 2 days. Most recently, AVIN Κερδίζω App was updated on September 23, 2026 and Comtel Sirens on September 12, 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.*