# Onzaram vs BoneAge

The clearest difference is in-app purchases: Onzaram at none against BoneAge's 2. Onzaram also leads on ads (none vs shown). BoneAge's advantage is update cadence (every 4 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BoneAge sells 2 in-app purchases, starting at $9.99 per year. Onzaram asks for nothing beyond the download.

Onzaram ships an update monthly, BoneAge every 4 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Onzaram | BoneAge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/boneagex-ray-image-assessment/id6806645946/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 55 MB | 125 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CRESCOM Co. Ltd,](https://appshunter.io/developer/1680105103) | [Dajax LLC](https://appshunter.io/developer/517137508) |

## What reviewers say

### Onzaram

[App page](https://appshunter.io/ios/app/onzaram/id6447048445)

This platform helps parents monitor their children's growth progress. It offers information on affiliated hospitals for growth plate exams and allows viewing exam results within the app.

**Highlights:** Track child growth progress, Find affiliated hospitals for growth exams, View growth plate exam results, Convenient progress monitoring, Holistic growth care information

**In-app purchases:** none


### BoneAge

[App page](https://appshunter.io/ios/app/boneagex-ray-image-assessment/id6806645946)

This app analyzes hand X-rays to estimate a child's skeletal age and predict adult height. It offers detailed regional age estimates and growth chart percentiles, all processed securely on your device.

**Highlights:** Skeletal age estimation from hand X-rays, 17 anatomical regions with regional age estimates, Adult height prediction, CDC growth chart percentiles, Automatic image validation, On-device analysis for privacy

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bone Age Pro | $9.99 | per year |
| 1 Credit | $4.99 | one-time |


## Frequently asked questions

### Is Onzaram free?

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

### Is BoneAge free?

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

### Do Onzaram or BoneAge have ads?

BoneAge shows ads; Onzaram does not.

### Which is updated more often, Onzaram or BoneAge?

Onzaram ships an update monthly, and BoneAge every 4 days. Most recently, Onzaram was updated on October 25, 2026 and BoneAge on October 29, 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.*