# HDR Diagnostics vs Celeris

The clearest difference is in-app purchases: HDR Diagnostics at none against Celeris's 1. Celeris's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Celeris sells 1 one-off in-app purchase. HDR Diagnostics asks for nothing beyond the download.

## The numbers

| Metric | HDR Diagnostics | Celeris |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/hdr-diagnostics/id6759677976/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | — |
| Size | 1 MB | 72 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Greg Benz Photography LLC](https://appshunter.io/developer/1880143460) | [Stefan Engel](https://appshunter.io/developer/893179878) |

## 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


### Celeris

[App page](https://appshunter.io/ios/app/celeris-photo-planner/id6795455170)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $8.99 | one-time |


## Frequently asked questions

### Is HDR Diagnostics free?

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

### Is Celeris free?

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

### Do HDR Diagnostics or Celeris have ads?

Neither HDR Diagnostics nor Celeris shows ads.

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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.*