# Professional Data Engineer vs Cloud Architect Exam Prep

The clearest difference is update cadence: Cloud Architect Exam Prep at every 8 days against Professional Data Engineer's every 13 months. Professional Data Engineer's advantage is iOS requirement (10.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Professional Data Engineer sells 1 one-off in-app purchase and Cloud Architect Exam Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Professional Data Engineer ships an update every 13 months, Cloud Architect Exam Prep every 8 days. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Professional Data Engineer | Cloud Architect Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 days** |
| Size | 25 MB | 91 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trieu Tran](https://appshunter.io/developer/1668827865) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### Professional Data Engineer

[App page](https://appshunter.io/ios/app/professional-data-engineer/id6473723698)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock complete App | $9.99 | one-time |


### Cloud Architect Exam Prep

[App page](https://appshunter.io/ios/app/cloud-architect-exam-prep/id6785744086)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Professional Data Engineer free?

Professional Data Engineer is free to download, with in-app purchases available.

### Is Cloud Architect Exam Prep free?

Cloud Architect Exam Prep is free to download, with in-app purchases available.

### Do Professional Data Engineer or Cloud Architect Exam Prep have ads?

Neither Professional Data Engineer nor Cloud Architect Exam Prep shows ads.

### Which is updated more often, Professional Data Engineer or Cloud Architect Exam Prep?

Professional Data Engineer ships an update every 13 months, and Cloud Architect Exam Prep every 8 days. Most recently, Professional Data Engineer was updated on October 8, 2026 and Cloud Architect Exam Prep on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*