# 情シスの教科書 vs AI Engineer Quiz

The clearest difference is in-app purchases: 情シスの教科書 at none against AI Engineer Quiz's 1. AI Engineer Quiz's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. AI Engineer Quiz sells 1 one-off in-app purchase. 情シスの教科書 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 22, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 情シスの教科書 | AI Engineer Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Freemium | — |
| Size | 11 MB | 18 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yoshihiko Ishikawa](https://appshunter.io/developer/1895906673) | [Kohei Omori](https://appshunter.io/developer/1886931034) |

## What reviewers say

### 情シスの教科書

[App page](https://appshunter.io/ios/app/se/id6764761204)

This app serves as a practical guide for new IT support staff and single IT personnel. It covers daily tasks, troubleshooting common issues, and preparing for IT certifications. The app provides a roadmap for the first 90 days, detailed workflows for urgent problems, and tools for logging and reporting. It also includes IT fundamentals and practice exams.

**Highlights:** 90-day roadmap for new IT staff, Troubleshooting workflows for 24 common issues, Automated response logging and monthly summaries, EOL (End-of-Life) calendar for critical dates, IT fundamentals and SQL practice, IT Passport exam preparation with past questions

**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 情シスの教科書 free?

情シスの教科書 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 情シスの教科書 or AI Engineer Quiz have ads?

情シスの教科書 shows ads; AI Engineer Quiz does not.

### Which is updated more often, 情シスの教科書 or AI Engineer Quiz?

情シスの教科書 ships an update fortnightly, and AI Engineer Quiz fortnightly. Most recently, 情シスの教科書 was updated on September 22, 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.*