# HDR Diagnostics vs CastNES

The clearest difference is in-app purchases: HDR Diagnostics at none against CastNES's 3. HDR Diagnostics also leads on ads (none vs shown) and ratings volume (6 vs 1). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. CastNES sells 3 in-app purchases, starting at $1.99 per 7 days. HDR Diagnostics asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for HDR Diagnostics against 5.0 for CastNES. That said, the two scores are not equally well evidenced: HDR Diagnostics has 6 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | HDR Diagnostics | CastNES |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/hdr-diagnostics/id6759677976/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/castnes-retro-games/id6760295692/reviews) |
| Number of ratings | **6** | 1 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | Free | — |
| Size | 1 MB | 19 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Greg Benz Photography LLC](https://appshunter.io/developer/1880143460) | [ROMAN RADKO](https://appshunter.io/developer/1816032944) |

## What reviewers say

### HDR Diagnostics

[App page](https://appshunter.io/ios/app/hdr-diagnostics/id6759677976)

This application helps iPhone users troubleshoot and optimize their device's HDR capabilities. It analyzes your phone's HDR headroom and identifies potential issues hindering maximum HDR performance.

**Highlights:** Troubleshoot HDR support, Optimize HDR settings, Analyze HDR headroom, Identify HDR limitations, Understand HDR potential

**Features:** macOS Compatibility

**In-app purchases:** none


### CastNES

[App page](https://appshunter.io/ios/app/castnes-retro-games/id6760295692)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is HDR Diagnostics free?

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

### Is CastNES free?

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

### Which has better reviews, HDR Diagnostics or CastNES?

HDR Diagnostics and CastNES are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do HDR Diagnostics or CastNES have ads?

CastNES shows ads; HDR Diagnostics does not.

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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.*