# 2021年1級機械保全技能士学科過去問 vs 自主保全士 1級 学科問題集

The clearest difference is update cadence: 自主保全士 1級 学科問題集 at every 2 days against 2021年1級機械保全技能士学科過去問's every 2 months. 自主保全士 1級 学科問題集 also leads on iOS requirement (12.0 vs 15.0). 2021年1級機械保全技能士学科過去問's advantage is review sentiment (33% vs 10%) and price ($1.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

2021年1級機械保全技能士学科過去問 costs $1.99 and 自主保全士 1級 学科問題集 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2021年1級機械保全技能士学科過去問 ships an update every 2 months, 自主保全士 1級 学科問題集 every 2 days. The most recent releases landed on October 4, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 2021年1級機械保全技能士学科過去問 | 自主保全士 1級 学科問題集 |
| --- | --- | --- |
| Price | **$1.99** | $3.99 |
| Positive reviews | **33.3% of reviews** | 10.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 7 MB | 49 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shinji ikeda](https://appshunter.io/developer/1615407188) | [株式会社キイロ乃カモ](https://appshunter.io/developer/1796537168) |

## What reviewers say

### 2021年1級機械保全技能士学科過去問

[App page](https://appshunter.io/ios/app/20211/id1644890831)

This app provides practice questions for the 2021 Level 1 Mechanical Maintenance Engineer exam. It offers various study modes, including all questions, checked questions, and incorrect questions, with explanations to deepen understanding. Users can also set their exam date to track remaining days.

**Highlights:** Practice exam questions, Study modes (all, checked, incorrect), Detailed answer explanations, Exam date countdown, Offline study capability

**In-app purchases:** none


### 自主保全士 1級 学科問題集

[App page](https://appshunter.io/ios/app/1/id6468426443)

This app provides a comprehensive study guide for the Level 1 Autonomous Maintenance Technician certification exam. It features ad-free practice questions with detailed explanations, allowing for offline study. The content is updated to the latest official text.

**Highlights:** Ad-free practice questions, Detailed explanations, Offline study capability, Updated to latest official text, Chapter-based and random question modes, Review of incorrect answers

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

**In-app purchases:** none


## Frequently asked questions

### Is 2021年1級機械保全技能士学科過去問 free?

2021年1級機械保全技能士学科過去問 costs $1.99, with no in-app purchases.

### Is 自主保全士 1級 学科問題集 free?

自主保全士 1級 学科問題集 costs $3.99, with no in-app purchases.

### Do 2021年1級機械保全技能士学科過去問 or 自主保全士 1級 学科問題集 have ads?

Neither 2021年1級機械保全技能士学科過去問 nor 自主保全士 1級 学科問題集 shows ads.

### Which is updated more often, 2021年1級機械保全技能士学科過去問 or 自主保全士 1級 学科問題集?

2021年1級機械保全技能士学科過去問 ships an update every 2 months, and 自主保全士 1級 学科問題集 every 2 days. Most recently, 2021年1級機械保全技能士学科過去問 was updated on October 4, 2026 and 自主保全士 1級 学科問題集 on October 23, 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.*