# Addition Quest vs CertPrep

The clearest difference is in-app purchases: Addition Quest at none against CertPrep's 1. Addition Quest also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CertPrep sells 1 one-off in-app purchase. Addition Quest asks for nothing beyond the download.

## The numbers

| Metric | Addition Quest | CertPrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | — |
| Size | 34 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPad, Mac, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Jan Roldan Hernandez](https://appshunter.io/developer/1896444338) |

## What reviewers say

### Addition Quest

[App page](https://appshunter.io/ios/app/addition-quest/id1462798226)

**Features:** Vision Pro support

**In-app purchases:** none


### CertPrep

[App page](https://appshunter.io/ios/app/certprep-cybersecurity/id6775248748)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Security+ Premium | $3.99 | one-time |


## Frequently asked questions

### Is Addition Quest free?

Addition Quest is free to download, with no in-app purchases.

### Is CertPrep free?

CertPrep is free to download, with in-app purchases available.

### Do Addition Quest or CertPrep have ads?

Neither Addition Quest nor CertPrep shows ads.

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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.*