# エアミル2W vs Japanese Edo clock

The clearest difference is in-app purchases: エアミル2W at none against Japanese Edo clock's 1. Japanese Edo clock's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Japanese Edo clock sells 1 one-off in-app purchase. エアミル2W asks for nothing beyond the download.

エアミル2W ships an update every 5 weeks, Japanese Edo clock every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | エアミル2W | Japanese Edo clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 20 MB | 47 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) | [ANAHEIM TECHNOLOGY INC](https://appshunter.io/developer/1878345855) |

## What reviewers say

### エアミル2W

[App page](https://appshunter.io/ios/app/2w/id1566331258)

Monitor environmental conditions with real-time data and historical graphs. This app visualizes temperature, humidity, and CO2 levels from a compatible Wi-Fi sensor.

**Highlights:** Real-time data display, Historical graph visualization, Temperature monitoring, Humidity monitoring, CO2 concentration tracking

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

**In-app purchases:** none


### Japanese Edo clock

[App page](https://appshunter.io/ios/app/japanese-edo-clock/id6759371242)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable the widget and Remove ads. | $0.99 | one-time |


## Frequently asked questions

### Is エアミル2W free?

エアミル2W is free to download, with no in-app purchases.

### Is Japanese Edo clock free?

Japanese Edo clock is free to download, with in-app purchases available.

### Do エアミル2W or Japanese Edo clock have ads?

Neither エアミル2W nor Japanese Edo clock shows ads.

### Which is updated more often, エアミル2W or Japanese Edo clock?

エアミル2W ships an update every 5 weeks, and Japanese Edo clock every 2 weeks. Most recently, エアミル2W was updated on October 14, 2026 and Japanese Edo clock on October 14, 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.*