# Adria Oil vs 4Tel

The clearest difference is update cadence: 4Tel at every 2 weeks against Adria Oil's every 11 months. Adria Oil's advantage is iOS requirement (12.0 vs 15.1). 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.

Adria Oil ships an update every 11 months, 4Tel every 2 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Adria Oil | 4Tel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Size | 60 MB | 41 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PetrolSoftIng](https://appshunter.io/developer/1315497328) | [SKVID d.o.o.](https://appshunter.io/developer/1567883312) |

## What reviewers say

### Adria Oil

[App page](https://appshunter.io/ios/app/adria-oil/id6450043539)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4Tel

[App page](https://appshunter.io/ios/app/4tel/id6737980976)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Adria Oil free?

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

### Is 4Tel free?

4Tel is free to download, with no in-app purchases.

### Do Adria Oil or 4Tel have ads?

Neither Adria Oil nor 4Tel shows ads.

### Which is updated more often, Adria Oil or 4Tel?

Adria Oil ships an update every 11 months, and 4Tel every 2 weeks. Most recently, Adria Oil was updated on October 27, 2026 and 4Tel on October 30, 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.*