# hechiriko vs エアミル2B

The clearest difference is update cadence: エアミル2B at every 6 months against hechiriko's every 21 months. hechiriko's advantage is iOS requirement (13.0 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.

hechiriko ships an update every 21 months, エアミル2B every 6 months. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | hechiriko | エアミル2B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 6 months** |
| Size | 5 MB | 22 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mayuko Shiino](https://appshunter.io/developer/1572414401) | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) |

## What reviewers say

### hechiriko

[App page](https://appshunter.io/ios/app/hechiriko/id1572414399)

**In-app purchases:** none


### エアミル2B

[App page](https://appshunter.io/ios/app/2b/id1584092359)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is hechiriko free?

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

### Is エアミル2B free?

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

### Do hechiriko or エアミル2B have ads?

Neither hechiriko nor エアミル2B shows ads.

### Which is updated more often, hechiriko or エアミル2B?

hechiriko ships an update every 21 months, and エアミル2B every 6 months. Most recently, hechiriko was updated on September 14, 2026 and エアミル2B on September 18, 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.*