# Masterclass oil service vs CarLog AZ

Masterclass oil service and CarLog AZ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Masterclass oil service ships an update every 9 days, CarLog AZ weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Masterclass oil service | CarLog AZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 44 MB | 19 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Rzayev Tural](https://appshunter.io/developer/1802475350) | [Rasul Alakbarov](https://appshunter.io/developer/6801615211) |

## What reviewers say

### Masterclass oil service

[App page](https://appshunter.io/ios/app/masterclass-oil-service/id6743369287)

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

**In-app purchases:** none


### CarLog AZ

[App page](https://appshunter.io/ios/app/carlog-az/id6801615209)

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

**In-app purchases:** none


## Frequently asked questions

### Is Masterclass oil service free?

Masterclass oil service is free to download, with no in-app purchases.

### Is CarLog AZ free?

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

### Do Masterclass oil service or CarLog AZ have ads?

Neither Masterclass oil service nor CarLog AZ shows ads.

### Which is updated more often, Masterclass oil service or CarLog AZ?

Masterclass oil service ships an update every 9 days, and CarLog AZ weekly. Most recently, Masterclass oil service was updated on October 30, 2026 and CarLog AZ on October 31, 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.*