# AZS OIL vs invert

The clearest difference is update cadence: invert at fortnightly against AZS OIL's every 5 weeks. 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.

AZS OIL ships an update every 5 weeks, invert fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AZS OIL | invert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 50 MB | 58 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aidar Sadyrov](https://appshunter.io/developer/1292245200) | [Amir Umarov](https://appshunter.io/developer/1804342034) |

## What reviewers say

### AZS OIL

[App page](https://appshunter.io/ios/app/azs-oil/id6469513067)

**Features:** macOS Compatibility

**In-app purchases:** none


### invert

[App page](https://appshunter.io/ios/app/invert/id6743755761)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AZS OIL free?

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

### Is invert free?

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

### Do AZS OIL or invert have ads?

Neither AZS OIL nor invert shows ads.

### Which is updated more often, AZS OIL or invert?

AZS OIL ships an update every 5 weeks, and invert fortnightly. Most recently, AZS OIL was updated on October 25, 2026 and invert on October 28, 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.*