# Sukoyaka - Baby Growth Chart — Height & weight vs WHO curves

> Height & weight vs WHO curves (iPhone/iPad app by Starcrown Inc.)

- Source: https://appshunter.io/ios/app/sukoyaka-baby-growth-chart/id6762508567 (this page in markdown: same URL + `.md`)
- Developer: [Starcrown Inc](https://appshunter.io/developer/1082624152)
- Category: Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 19 MB
- Languages: American English, Danish, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2026-04-22
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/sukoyaka-baby-growth-chart/id6762508567/reviews.md

## What is Sukoyaka?

Sukoyaka is a gentle growth-chart app for babies and toddlers (0-3y), plotting height, weight, and head circumference against WHO standards.

"Is my baby's size in the typical range?" "What percentile are we in?" "Are we growing steadily?" Sukoyaka answers these everyday questions at a glance, with a friendly giraffe at your side.

■ Features
• One-tap entry for height, weight, and head circumference
• Automatic percentile against WHO Child Growth Standards (0-36m)
• Sex-specific curves at 3rd / 15th / 50th / 85th / 97th percentiles
• Overlay your records on top of WHO curves
• Home Screen widget for latest measurements
• Fully offline — data stays on device

■ Sukoyaka Pro
Upgrade to unlock unlimited history, multiple children, 3 premium themes, CSV export, and more.

Monthly and yearly auto-renewable plans are available.
Prices and subscription periods are shown on the App Store purchase sheet before confirmation.

Your Apple ID is charged upon purchase. Auto-renews unless canceled at least 24 hours before the period ends. Manage in Settings > Apple ID > Subscriptions.

■ Privacy
All data stays on your device. No account, no ads, no tracking.

■ Note
This app provides general guidance based on WHO Child Growth Standards. Consult your pediatrician for medical advice.

Terms: https://starcrown.co.jp/legal
Privacy: https://starcrown.co.jp/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Sukoyaka Pro Monthly | $2.99 | per month |
| Sukoyaka Pro Yearly | $17.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Cake Tip | $3.99 | one-time |
| Cookie Tip | $1.99 | one-time |
| Coffee Tip | $0.99 | one-time |



## Version history (last 5 releases)

### 1.3.13 — 2026-08-14

Improved purchase outcomes and restore flow.

### 1.3.12 — 2026-08-05

Clarified the free growth-chart window so records older than 90 days are clearly unlocked with Pro.

### 1.3.11 — 2026-07-17

Improved the first-run guide with a clearer, easier-to-tap skip control.

### 1.3.10 — 2026-07-09

Refined the Pro screen for quicker scanning.
Added a more visual growth chart preview for full history and multiple children.
Made pricing, restore, and subscription details easier to confirm.

### 1.3.9 — 2026-07-01

Improved the Pro upgrade entry points so monthly and yearly plan prices are shown before purchase.

## More apps by Starcrown Inc

- [Shikutoku - 淑女のための優しい世界](https://appshunter.io/ios/app/shikutoku/id1421649436)
- [まとめα - スカッと体験談まとめ](https://appshunter.io/ios/app/id1460784798)
- [Arukucchi: Walking Pet Raising](https://appshunter.io/ios/app/arukucchi-walking-pet-raising/id6761110380)
- [Rosy Life - Done Diary](https://appshunter.io/ios/app/rosy-life-done-diary/id6761161263)
- [kirari](https://appshunter.io/ios/app/kirari/id6761170476)
- [onesec - 1秒Vlog](https://appshunter.io/ios/app/onesec-1vlog/id6761184844)

All apps by Starcrown Inc: https://appshunter.io/developer/1082624152

## Related topics

[baby growth chart](https://appshunter.io/ios/topics/baby-growth-chart)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*