# Professional Data Engineer vs GCP ML Engineer Prep 2026

The clearest difference is in-app purchases: GCP ML Engineer Prep 2026 at none against Professional Data Engineer's 1. GCP ML Engineer Prep 2026 also leads on update cadence (every 4 days vs every 13 months). Professional Data Engineer's advantage is ads (none vs shown) and iOS requirement (10.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Professional Data Engineer sells 1 one-off in-app purchase. GCP ML Engineer Prep 2026 asks for nothing beyond the download.

Professional Data Engineer ships an update every 13 months, GCP ML Engineer Prep 2026 every 4 days. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Professional Data Engineer | GCP ML Engineer Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 4 days** |
| Size | 25 MB | 16 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Trieu Tran](https://appshunter.io/developer/1668827865) | [SPIDER SERVICE SRL](https://appshunter.io/developer/1120210105) |

## 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 |


### GCP ML Engineer Prep 2026

[App page](https://appshunter.io/ios/app/gcp-ml-engineer-prep-2026/id6756066624)

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

**In-app purchases:** none


## Frequently asked questions

### Is Professional Data Engineer free?

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

### Is GCP ML Engineer Prep 2026 free?

GCP ML Engineer Prep 2026 is free to download, with no in-app purchases.

### Do Professional Data Engineer or GCP ML Engineer Prep 2026 have ads?

GCP ML Engineer Prep 2026 shows ads; Professional Data Engineer does not.

### Which is updated more often, Professional Data Engineer or GCP ML Engineer Prep 2026?

Professional Data Engineer ships an update every 13 months, and GCP ML Engineer Prep 2026 every 4 days. Most recently, Professional Data Engineer was updated on September 21, 2026 and GCP ML Engineer Prep 2026 on September 11, 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.*