# PDE Data Engineer Exam Prep vs Data Engineer Exam Prep

The clearest difference is in-app purchases: PDE Data Engineer Exam Prep at none against Data Engineer Exam Prep's 1. 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. Data Engineer Exam Prep sells 1 one-off in-app purchase. PDE Data Engineer Exam Prep asks for nothing beyond the download.

PDE Data Engineer Exam Prep ships an update every 3 months, Data Engineer Exam Prep every 10 days. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PDE Data Engineer Exam Prep | Data Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 27 MB | 106 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 Data Engineer Exam Prep

[App page](https://appshunter.io/ios/app/pde-data-engineer-exam-prep/id6757119609)

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

**In-app purchases:** none


### Data Engineer Exam Prep

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

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is PDE Data Engineer Exam Prep free?

PDE Data Engineer Exam Prep is free to download, with no in-app purchases.

### Is Data Engineer Exam Prep free?

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

### Do PDE Data Engineer Exam Prep or Data Engineer Exam Prep have ads?

Neither PDE Data Engineer Exam Prep nor Data Engineer Exam Prep shows ads.

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

PDE Data Engineer Exam Prep ships an update every 3 months, and Data Engineer Exam Prep every 10 days. Most recently, PDE Data Engineer Exam Prep was updated on October 11, 2026 and Data Engineer Exam Prep on October 25, 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.*