# Codey vs AI Engineer Quiz

The clearest difference is in-app purchases: Codey at none against AI Engineer Quiz's 1. AI Engineer Quiz's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AI Engineer Quiz sells 1 one-off in-app purchase. Codey asks for nothing beyond the download.

Codey ships an update every 4 months, AI Engineer Quiz fortnightly. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Codey | AI Engineer Quiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 127 MB | 18 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gifty AI](https://appshunter.io/developer/1827167976) | [Kohei Omori](https://appshunter.io/developer/1886931034) |

## What reviewers say

### Codey

[App page](https://appshunter.io/ios/app/codey-coding-interview-prep/id6758357319)

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

**In-app purchases:** none


### AI Engineer Quiz

[App page](https://appshunter.io/ios/app/ai-engineer-quiz/id6770689652)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $5.99 | one-time |


## Frequently asked questions

### Is Codey free?

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

### Is AI Engineer Quiz free?

AI Engineer Quiz is free to download, with in-app purchases available.

### Do Codey or AI Engineer Quiz have ads?

Neither Codey nor AI Engineer Quiz shows ads.

### Which is updated more often, Codey or AI Engineer Quiz?

Codey ships an update every 4 months, and AI Engineer Quiz fortnightly. Most recently, Codey was updated on September 21, 2026 and AI Engineer Quiz on September 8, 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.*