# Head Model Studio vs Tattoo Inkprep

The clearest difference is update cadence: Tattoo Inkprep at every 5 days against Head Model Studio's monthly. Tattoo Inkprep also leads on iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support 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 Tattoo Inkprep sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

Head Model Studio ships an update monthly, Tattoo Inkprep every 5 days. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Head Model Studio | Tattoo Inkprep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.4K ratings)](https://appshunter.io/ios/app/head-model-studio-art-study/id1527028690/reviews)** | — |
| Number of ratings | **2.4K** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2.2 GB | 69 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wes Castain](https://appshunter.io/developer/1527028692) | [Guillermo Andujar](https://appshunter.io/developer/6779962404) |

## What reviewers say

### Head Model Studio

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

This app provides 3D reference models for artists to study and draw faces. It offers detailed control over lighting and rendering to help users understand facial planes and tones, aiding in portrait drawing practice.

**Highlights:** 25 detailed 3D head models, Full 3D model control (zoom, tilt, rotate), Realistic environmental and studio lighting, Customizable rendering with edge outlines, Pre-made practice scenes, Study facial planes and geometry

**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


### Tattoo Inkprep

[App page](https://appshunter.io/ios/app/tattoo-inkprep/id6779962402)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkprep Pro | $11.99 | per month |
| Inkprep Pro | $89.99 | per year |


## Frequently asked questions

### Is Head Model Studio free?

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

### Is Tattoo Inkprep free?

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

### Do Head Model Studio or Tattoo Inkprep have ads?

Neither Head Model Studio nor Tattoo Inkprep shows ads.

### Which is updated more often, Head Model Studio or Tattoo Inkprep?

Head Model Studio ships an update monthly, and Tattoo Inkprep every 5 days. Most recently, Head Model Studio was updated on October 18, 2026 and Tattoo Inkprep on October 8, 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.*