# PDE Pro Database Engineer vs GCP Data Engineer Exam Prep

The clearest difference is in-app purchases: PDE Pro Database Engineer at none against GCP Data Engineer Exam Prep's 1. GCP Data Engineer Exam Prep's advantage is update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GCP Data Engineer Exam Prep sells 1 one-off in-app purchase. PDE Pro Database Engineer asks for nothing beyond the download.

PDE Pro Database Engineer ships an update every 3 months, GCP Data Engineer Exam Prep every 10 days. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PDE Pro Database Engineer | GCP Data Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 30 MB | 99 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### PDE Pro Database Engineer

[App page](https://appshunter.io/ios/app/pde-pro-database-engineer/id6756967890)

**Features:** macOS Compatibility

**In-app purchases:** none


### GCP Data Engineer Exam Prep

[App page](https://appshunter.io/ios/app/gcp-data-engineer-exam-prep/id6785744308)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.90 | one-time |


## Frequently asked questions

### Is PDE Pro Database Engineer free?

PDE Pro Database Engineer is free to download, with no in-app purchases.

### Is GCP Data Engineer Exam Prep free?

GCP Data Engineer Exam Prep is free to download, with in-app purchases available.

### Do PDE Pro Database Engineer or GCP Data Engineer Exam Prep have ads?

Neither PDE Pro Database Engineer nor GCP Data Engineer Exam Prep shows ads.

### Which is updated more often, PDE Pro Database Engineer or GCP Data Engineer Exam Prep?

PDE Pro Database Engineer ships an update every 3 months, and GCP Data Engineer Exam Prep every 10 days. Most recently, PDE Pro Database Engineer was updated on September 8, 2026 and GCP Data Engineer Exam Prep on September 20, 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.*