# Data Engineer Cert Prep vs Write Arabic Alphabet

The clearest difference is price: Data Engineer Cert Prep at Free against Write Arabic Alphabet's $3.99. Write Arabic Alphabet's advantage is update cadence (every 5 weeks vs every 13 months) and chart position (#188 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Data Engineer Cert Prep is free to download; Write Arabic Alphabet costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Data Engineer Cert Prep ships an update every 13 months, Write Arabic Alphabet every 5 weeks. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Data Engineer Cert Prep | Write Arabic Alphabet |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 weeks** |
| Best chart rank | — | **#188** |
| Size | 1 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DjamgaTech Corp](https://appshunter.io/developer/969000181) | [Jelmer van Nuss](https://appshunter.io/developer/1880809991) |

## What reviewers say

### Data Engineer Cert Prep

[App page](https://appshunter.io/ios/app/data-engineer-cert-prep/id6566170013)

**Features:** Vision Pro support

**In-app purchases:** none


### Write Arabic Alphabet

[App page](https://appshunter.io/ios/app/write-arabic-alphabet/id6759831436)

**Currently charting:** #188 Top Paid · Education (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Data Engineer Cert Prep free?

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

### Is Write Arabic Alphabet free?

Write Arabic Alphabet costs $3.99, with no in-app purchases.

### Do Data Engineer Cert Prep or Write Arabic Alphabet have ads?

Neither Data Engineer Cert Prep nor Write Arabic Alphabet shows ads.

### Which is updated more often, Data Engineer Cert Prep or Write Arabic Alphabet?

Data Engineer Cert Prep ships an update every 13 months, and Write Arabic Alphabet every 5 weeks. Most recently, Data Engineer Cert Prep was updated on September 14, 2026 and Write Arabic Alphabet on September 22, 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.*