# 愛する我が子への手紙 vs ルナカーザ

The clearest difference is ads: ルナカーザ at none against 愛する我が子への手紙's shown. 愛する我が子への手紙's advantage is update cadence (every 4 months vs every 34 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

愛する我が子への手紙 ships an update every 4 months, ルナカーザ every 34 months. The most recent releases landed on October 27, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 愛する我が子への手紙 | ルナカーザ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 34 months |
| Size | 63 MB | 4 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anderson Oki](https://appshunter.io/developer/1525688631) | [Seiko Yokoyama](https://appshunter.io/developer/1661591398) |

## What reviewers say

### 愛する我が子への手紙

[App page](https://appshunter.io/ios/app/id1596713005)

**Features:** macOS Compatibility

**In-app purchases:** none


### ルナカーザ

[App page](https://appshunter.io/ios/app/id1661591396)

**In-app purchases:** none


## Frequently asked questions

### Is 愛する我が子への手紙 free?

愛する我が子への手紙 is free to download, with no in-app purchases.

### Is ルナカーザ free?

ルナカーザ is free to download, with no in-app purchases.

### Do 愛する我が子への手紙 or ルナカーザ have ads?

愛する我が子への手紙 shows ads; ルナカーザ does not.

### Which is updated more often, 愛する我が子への手紙 or ルナカーザ?

愛する我が子への手紙 ships an update every 4 months, and ルナカーザ every 34 months. Most recently, 愛する我が子への手紙 was updated on October 27, 2026 and ルナカーザ on September 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*