# O&M巡回点検 vs 1A1M

The clearest difference is update cadence: O&M巡回点検 at every 6 weeks against 1A1M's every 4 months. O&M巡回点検 also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

O&M巡回点検 ships an update every 6 weeks, 1A1M every 4 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | O&M巡回点検 | 1A1M |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 35 MB | 71 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [サンユー株式会社](https://appshunter.io/developer/1050028567) | [IDEC CORPORATION](https://appshunter.io/developer/609407337) |

## What reviewers say

### O&M巡回点検

[App page](https://appshunter.io/ios/app/o-and-m/id1168485247)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1A1M

[App page](https://appshunter.io/ios/app/1a1m/id6461311298)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is O&M巡回点検 free?

O&M巡回点検 is free to download, with no in-app purchases.

### Is 1A1M free?

1A1M is free to download, with no in-app purchases.

### Do O&M巡回点検 or 1A1M have ads?

Neither O&M巡回点検 nor 1A1M shows ads.

### Which is updated more often, O&M巡回点検 or 1A1M?

O&M巡回点検 ships an update every 6 weeks, and 1A1M every 4 months. Most recently, O&M巡回点検 was updated on October 26, 2026 and 1A1M on October 30, 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.*