# Girin vs Mamuri

The clearest difference is in-app purchases: Girin at none against Mamuri's 2. Girin also leads on ads (none vs shown). Mamuri's advantage is update cadence (weekly vs every 27 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Mamuri sells 2 in-app purchases, starting at $4.99 per month. Girin asks for nothing beyond the download.

Girin ships an update every 27 months, Mamuri weekly. The most recent releases landed on June 5, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Girin | Mamuri |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/girin/id1556565598/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Weekly** |
| Monetization | Free | — |
| Size | 57 MB | 102 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [yaehoon Kim](https://appshunter.io/developer/1556565600) | [SUNJUN KIM](https://appshunter.io/developer/1886746240) |

## What reviewers say

### Girin

[App page](https://appshunter.io/ios/app/girin/id1556565598)

Utilize advanced AR technology to measure and record children's heights without physical charts. Track your child's growth professionally and accurately with built-in iPhone sensors.

**Highlights:** Advanced AR height measurement, Digital height charts for kids, Professional and accurate growth recording, Uses iPhone sensors, No physical stickers or lines needed

**Features:** macOS Compatibility

**In-app purchases:** none


### Mamuri

[App page](https://appshunter.io/ios/app/mamuri/id6760908812)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mamuri Premium Monthly | $4.99 | per month |
| Mamuri Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Girin free?

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

### Is Mamuri free?

Mamuri is free to download, with in-app purchases available.

### Do Girin or Mamuri have ads?

Mamuri shows ads; Girin does not.

### Which is updated more often, Girin or Mamuri?

Girin ships an update every 27 months, and Mamuri weekly. Most recently, Girin was updated on June 5, 2026 and Mamuri on August 26, 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.*