# Girin vs Waveful

The clearest difference is ads: Girin at none against Waveful's shown. Waveful's advantage is update cadence (fortnightly vs every 27 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.

Girin ships an update every 27 months, Waveful fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Girin | Waveful |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 57 MB | 4 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [yaehoon Kim](https://appshunter.io/developer/1556565600) | [Purple Night Inc](https://appshunter.io/developer/1868378073) |

## 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


### Waveful

[App page](https://appshunter.io/ios/app/waveful/id6769578524)

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

**In-app purchases:** none


## Frequently asked questions

### Is Girin free?

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

### Is Waveful free?

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

### Do Girin or Waveful have ads?

Waveful shows ads; Girin does not.

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

Girin ships an update every 27 months, and Waveful fortnightly. Most recently, Girin was updated on October 24, 2026 and Waveful on October 25, 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.*