# Erdem Card vs Certification Prep Pro

The clearest difference is device support: Erdem Card at 3 against Certification Prep Pro's 1. Erdem Card also leads on iOS requirement (13.0 vs 17.5). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Erdem Card ships an update every 3 months, Certification Prep Pro every 2 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Erdem Card | Certification Prep Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 23 MB | 17 MB |
| Requires iOS | **13.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bodi Electronics LLC](https://appshunter.io/developer/1666180398) | [Coffeedevs LLC](https://appshunter.io/developer/1793357959) |

## What reviewers say

### Erdem Card

[App page](https://appshunter.io/ios/app/erdem-card/id6738769048)

**Features:** macOS Compatibility

**In-app purchases:** none


### Certification Prep Pro

[App page](https://appshunter.io/ios/app/certification-prep-pro/id6741158449)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Erdem Card free?

Erdem Card is free to download, with no in-app purchases.

### Is Certification Prep Pro free?

Certification Prep Pro is free to download, with no in-app purchases.

### Do Erdem Card or Certification Prep Pro have ads?

Neither Erdem Card nor Certification Prep Pro shows ads.

### Which is updated more often, Erdem Card or Certification Prep Pro?

Erdem Card ships an update every 3 months, and Certification Prep Pro every 2 months. Most recently, Erdem Card was updated on October 4, 2026 and Certification Prep Pro on October 7, 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.*