# Tint Lens vs Cranio Head Study

The clearest difference is in-app purchases: Tint Lens at none against Cranio Head Study's 7. Tint Lens also leads on iOS requirement (13.4 vs 18.2). On price, update cadence, ads 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. Tint Lens asks for nothing beyond the download.

Tint Lens ships an update every 8 days, Cranio Head Study every 9 days. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Tint Lens | Cranio Head Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Size | 20 MB | 159 MB |
| Requires iOS | **13.4** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Justin Albinet](https://appshunter.io/developer/1872786676) | [Avinash Kumawat](https://appshunter.io/developer/1552057072) |

## What reviewers say

### Tint Lens

[App page](https://appshunter.io/ios/app/tint-lens/id6758409198)

**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 Tint Lens free?

Tint Lens 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 Tint Lens or Cranio Head Study have ads?

Neither Tint Lens nor Cranio Head Study shows ads.

### Which is updated more often, Tint Lens or Cranio Head Study?

Tint Lens ships an update every 8 days, and Cranio Head Study every 9 days. Most recently, Tint Lens was updated on October 7, 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.*