# 一次関数計算機 vs 機械保全3級

The clearest difference is in-app purchases: 一次関数計算機 at none against 機械保全3級's 1. 機械保全3級's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 機械保全3級 sells 1 one-off in-app purchase. 一次関数計算機 asks for nothing beyond the download.

## The numbers

| Metric | 一次関数計算機 | 機械保全3級 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 5 MB |
| Requires iOS | 16.2 | **16.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Risako Asai](https://appshunter.io/developer/1671273580) | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) |

## What reviewers say

### 一次関数計算機

[App page](https://appshunter.io/ios/app/id6445860012)

**In-app purchases:** none


### 機械保全3級

[App page](https://appshunter.io/ios/app/3/id6758688203)

This app provides a comprehensive study tool for the Level 3 Mechanical Maintenance exam (Mechanical Maintenance Work). It features approximately 500 practice questions with detailed explanations, progress tracking, and flexible study modes. Learn efficiently during your commute or any free time.

**Highlights:** 500+ practice questions, Detailed explanations, Progress tracking, Identify and focus on weak areas, Random and review modes, Offline access

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 機械保全3級（機械系保全作業） 試験対策 | $1.99 | one-time |


## Frequently asked questions

### Is 一次関数計算機 free?

一次関数計算機 is free to download, with no in-app purchases.

### Is 機械保全3級 free?

機械保全3級 is free to download, with in-app purchases available.

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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.*