# ２級自動車整備士 AIノート vs ボイラー整備士

The clearest difference is in-app purchases: ２級自動車整備士 AIノート at none against ボイラー整備士's 1. ボイラー整備士's advantage is ads (none vs shown) and update cadence (every 8 days vs every 17 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ボイラー整備士 sells 1 one-off in-app purchase. ２級自動車整備士 AIノート asks for nothing beyond the download.

２級自動車整備士 AIノート ships an update every 17 months, ボイラー整備士 every 8 days. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | ２級自動車整備士 AIノート | ボイラー整備士 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 8 days** |
| Size | 8 MB | 4 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [reiko hori](https://appshunter.io/developer/1777370692) | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) |

## What reviewers say

### ２級自動車整備士 AIノート

[App page](https://appshunter.io/ios/app/ai/id6738468873)

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

**In-app purchases:** none


### ボイラー整備士

[App page](https://appshunter.io/ios/app/id6757135677)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ボイラー整備士 試験対策 | $1.99 | one-time |


## Frequently asked questions

### Is ２級自動車整備士 AIノート free?

２級自動車整備士 AIノート is free to download, with no in-app purchases.

### Is ボイラー整備士 free?

ボイラー整備士 is free to download, with in-app purchases available.

### Do ２級自動車整備士 AIノート or ボイラー整備士 have ads?

２級自動車整備士 AIノート shows ads; ボイラー整備士 does not.

### Which is updated more often, ２級自動車整備士 AIノート or ボイラー整備士?

２級自動車整備士 AIノート ships an update every 17 months, and ボイラー整備士 every 8 days. Most recently, ２級自動車整備士 AIノート was updated on November 8, 2026 and ボイラー整備士 on November 9, 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.*