# PG Artist's Block vs Cranio Head Study

The clearest difference is in-app purchases: PG Artist's Block at none against Cranio Head Study's 7. PG Artist's Block also leads on iOS requirement (13.0 vs 18.2). Cranio Head Study's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Cranio Head Study sells 7 in-app purchases, starting at $2.99 per year. PG Artist's Block asks for nothing beyond the download.

PG Artist's Block ships an update weekly, Cranio Head Study every 9 days. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | PG Artist's Block | Cranio Head Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Size | 21 MB | 159 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Celtic Wards, LLC](https://appshunter.io/developer/1219544143) | [Avinash Kumawat](https://appshunter.io/developer/1552057072) |

## What reviewers say

### PG Artist's Block

[App page](https://appshunter.io/ios/app/pg-artists-block/id6755746354)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cranio Head Study

[App page](https://appshunter.io/ios/app/cranio-head-study/id6775111632)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $2.99 | per year |
| Pro Monthly | $2.99 | per month |
| Pro · Monthly | $4.99 | per month |
| Pro Yearly | $14.99 | per year |
| Pro · Annual | $29.99 | per year |
| Pro · Lifetime | $9.99 | one-time |
| Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is PG Artist's Block free?

PG Artist's Block is free to download, with no in-app purchases.

### Is Cranio Head Study free?

Cranio Head Study is free to download, with in-app purchases available.

### Do PG Artist's Block or Cranio Head Study have ads?

PG Artist's Block shows ads; Cranio Head Study does not.

### Which is updated more often, PG Artist's Block or Cranio Head Study?

PG Artist's Block ships an update weekly, and Cranio Head Study every 9 days. Most recently, PG Artist's Block was updated on October 11, 2026 and Cranio Head Study on October 17, 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.*