# Oilex vs PetroFI

The clearest difference is update cadence: PetroFI at every 4 days against Oilex's fortnightly. Oilex's advantage is iOS requirement (12.0 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.

Oilex ships an update fortnightly, PetroFI every 4 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Oilex | PetroFI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 3 MB | 44 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [M M I SOFTWARES PRIVATE LIMITED](https://appshunter.io/developer/1049304495) | [Anurag Srivastava](https://appshunter.io/developer/1874649245) |

## What reviewers say

### Oilex

[App page](https://appshunter.io/ios/app/oilex/id1469858567)

**Features:** macOS Compatibility

**In-app purchases:** none


### PetroFI

[App page](https://appshunter.io/ios/app/petrofi/id6758732447)

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

**In-app purchases:** none


## Frequently asked questions

### Is Oilex free?

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

### Is PetroFI free?

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

### Do Oilex or PetroFI have ads?

Neither Oilex nor PetroFI shows ads.

### Which is updated more often, Oilex or PetroFI?

Oilex ships an update fortnightly, and PetroFI every 4 days. Most recently, Oilex was updated on October 26, 2026 and PetroFI on October 24, 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.*