# Head Model Studio vs Orange Chart

The clearest difference is rating: Head Model Studio at 4.6 against Orange Chart's 3.9. Head Model Studio also leads on ads (none vs shown) and ratings volume (2.5K vs 8). Orange Chart's advantage is update cadence (every 2 weeks vs monthly). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Head Model Studio sells 4 in-app purchases, starting at $9.00 per month and Orange Chart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Head Model Studio holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Head Model Studio has 2.5K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 76% of Head Model Studio's written reviews are positive against 75% of Orange Chart's.

Head Model Studio ships an update monthly, Orange Chart every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Head Model Studio | Orange Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.5K ratings)](https://appshunter.io/ios/app/head-model-studio-art-study/id1527028690/reviews)** | [3.9 (8 ratings)](https://appshunter.io/ios/app/orange-chart-character-maps/id6720723898/reviews) |
| Number of ratings | **2.5K** | 8 |
| Positive reviews | **76.4% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 2.2 GB | 33 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Wes Castain](https://appshunter.io/developer/1527028692) | [Chizuru Kondo](https://appshunter.io/developer/1642104249) |

## What reviewers say

### Head Model Studio

[App page](https://appshunter.io/ios/app/head-model-studio-art-study/id1527028690)

Master portrait drawing with detailed 3D head models. Study facial planes and geometry with customizable lighting and rendering options. Perfect for artists looking to elevate their sketching skills.

**Highlights:** Detailed 3D head models, Plane and geometry study, Customizable lighting (environmental & studio), Adjustable rendering (edge outline, shininess), Pre-made practice scenes, Zoom, tilt, and rotate controls

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Access | $9.00 | per month |
| 1 Year Access | $16.00 | per year |
| 1 Year Access | $23.00 | one-time |
| Lifetime Access | $50.00 | one-time |

**What reviewers like**

- 🎨 Excellent reference tool for artists
- 🔍 Helpful for understanding head anatomy and planes
- 🔧 Customizable lighting and model features
- 💰 Reasonable subscription pricing

**What reviewers complain about**

- 💰 Premium features locked behind paywall
- 🔒 Lack of free trial to test premium content
- 🔧 Limited customization options for free users
- 🐛 Occasional technical issues with lighting and model adjustments

**Reported bugs**

- Sudden loss of model functionality after updates
- Overheating issues on some devices

**Requested features**

- Add female Loomis head models
- Expand customization options for paid users
- Implement full-body reference models
- Provide option for one-time lifetime purchase


### Orange Chart

[App page](https://appshunter.io/ios/app/orange-chart-character-maps/id6720723898)

Create relationship diagrams, mind maps, and character charts with an easy-to-use tool. Organize ideas, plan stories, or map family connections. Offers offline functionality and private data storage.

**Highlights:** Create relationship diagrams, Mind mapping functionality, Character chart creation, List editing and grouping, Offline and private data, PNG and PDF export (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | one-time |


## Frequently asked questions

### Is Head Model Studio free?

Head Model Studio is free to download, with in-app purchases available.

### Is Orange Chart free?

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

### Which has better reviews, Head Model Studio or Orange Chart?

Head Model Studio is rated higher. Head Model Studio averages 4.6 out of 5 from 2.5K ratings, while Orange Chart averages 3.9 from 8 ratings.

### Do Head Model Studio or Orange Chart have ads?

Orange Chart shows ads; Head Model Studio does not.

### Which is updated more often, Head Model Studio or Orange Chart?

Head Model Studio ships an update monthly, and Orange Chart every 2 weeks. Most recently, Head Model Studio was updated on November 3, 2026 and Orange Chart on November 4, 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.*