# QCM Drone STS Examen CATS vs AZ

The clearest difference is price: AZ at Free against QCM Drone STS Examen CATS's $8.99. AZ also leads on update cadence (every 4 days vs every 4 months). QCM Drone STS Examen CATS's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

AZ is free to download; QCM Drone STS Examen CATS costs $8.99 up front. AZ sells 1 one-off in-app purchase. QCM Drone STS Examen CATS asks for nothing beyond the download.

QCM Drone STS Examen CATS ships an update every 4 months, AZ every 4 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | QCM Drone STS Examen CATS | AZ |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 28 MB | 207 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mattia guatta](https://appshunter.io/developer/1063246820) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### QCM Drone STS Examen CATS

[App page](https://appshunter.io/ios/app/qcm-drone-sts-examen-cats/id6642660357)

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

**In-app purchases:** none


### AZ

[App page](https://appshunter.io/ios/app/az-400-devops-solutions-prep/id6782107784)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AZ-400 Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is QCM Drone STS Examen CATS free?

QCM Drone STS Examen CATS costs $8.99, with no in-app purchases.

### Is AZ free?

AZ is free to download, with in-app purchases available.

### Do QCM Drone STS Examen CATS or AZ have ads?

Neither QCM Drone STS Examen CATS nor AZ shows ads.

### Which is updated more often, QCM Drone STS Examen CATS or AZ?

QCM Drone STS Examen CATS ships an update every 4 months, and AZ every 4 days. Most recently, QCM Drone STS Examen CATS was updated on November 4, 2026 and 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.*