# AIチャットくん（AI Chat） vs 丙種ガス主任技術者対策 500問

The clearest difference is price: AIチャットくん（AI Chat） at Free against 丙種ガス主任技術者対策 500問's $3.99. AIチャットくん（AI Chat） also leads on iOS requirement (12.0 vs 15.1). 丙種ガス主任技術者対策 500問's advantage is in-app purchases (none vs 4). On update cadence, ads and device support there is nothing between them.

AIチャットくん（AI Chat） is free to download; 丙種ガス主任技術者対策 500問 costs $3.99 up front. AIチャットくん（AI Chat） sells 4 in-app purchases, starting at $4.99 per 7 days. 丙種ガス主任技術者対策 500問 asks for nothing beyond the download.

AIチャットくん（AI Chat） ships an update monthly, 丙種ガス主任技術者対策 500問 every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AIチャットくん（AI Chat） | 丙種ガス主任技術者対策 500問 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (26 ratings)](https://appshunter.io/ios/app/aiai-chat-ai/id1668296749/reviews)** | — |
| Number of ratings | **26** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 89 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Yukito Shibuya](https://appshunter.io/developer/1451047215) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### AIチャットくん（AI Chat）

[App page](https://appshunter.io/ios/app/aiai-chat-ai/id1668296749)

This AI-powered assistant helps users with a variety of tasks, from answering questions and generating ideas to assisting with learning and daily chores. It can act as a tutor, a creative partner, or a conversational companion.

**Highlights:** AI-powered conversation, Task automation and efficiency, Learning and tutoring support, Creative idea generation, Daily life assistance, Language learning tutor

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| スタンダードプラン | $4.99 | per 7 days |
| スタンダード | $8.99 | per month |
| スタンダードプラン | $24.99 | per 3 months |
| スタンダードプラン | $69.99 | per year |


### 丙種ガス主任技術者対策 500問

[App page](https://appshunter.io/ios/app/500/id6790227200)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIチャットくん（AI Chat） free?

AIチャットくん（AI Chat） is free to download, with in-app purchases available.

### Is 丙種ガス主任技術者対策 500問 free?

丙種ガス主任技術者対策 500問 costs $3.99, with no in-app purchases.

### Do AIチャットくん（AI Chat） or 丙種ガス主任技術者対策 500問 have ads?

Neither AIチャットくん（AI Chat） nor 丙種ガス主任技術者対策 500問 shows ads.

### Which is updated more often, AIチャットくん（AI Chat） or 丙種ガス主任技術者対策 500問?

AIチャットくん（AI Chat） ships an update monthly, and 丙種ガス主任技術者対策 500問 every 3 weeks. Most recently, AIチャットくん（AI Chat） was updated on November 3, 2026 and 丙種ガス主任技術者対策 500問 on October 31, 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.*