# HakkoQuiz vs AI Engineer Quiz

The clearest difference is in-app purchases: HakkoQuiz at none against AI Engineer Quiz's 1. HakkoQuiz also leads on device support (4 vs 2) and iOS requirement (11.0 vs 15.1). AI Engineer Quiz's advantage is update cadence (weekly vs every 5 weeks). On price and ads there is nothing between them.

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

HakkoQuiz ships an update every 5 weeks, AI Engineer Quiz weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HakkoQuiz | AI Engineer Quiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 45 MB | 18 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HAKKO SMILE](https://appshunter.io/developer/1792690106) | [Kohei Omori](https://appshunter.io/developer/1886931034) |

## What reviewers say

### HakkoQuiz

[App page](https://appshunter.io/ios/app/hakkoquiz/id6741038473)

**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 HakkoQuiz free?

HakkoQuiz 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 HakkoQuiz or AI Engineer Quiz have ads?

Neither HakkoQuiz nor AI Engineer Quiz shows ads.

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

HakkoQuiz ships an update every 5 weeks, and AI Engineer Quiz weekly. Most recently, HakkoQuiz was updated on October 28, 2026 and AI Engineer Quiz 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.*