# Simple HDR vs HDRI Prep

The clearest difference is review sentiment: HDRI Prep at 100% against Simple HDR's 56%. Simple HDR's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Simple HDR costs $9.99 and HDRI Prep $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple HDR ships an update every 2 months, HDRI Prep every 9 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Simple HDR | HDRI Prep |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/simple-hdr/id1035541353/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 2 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Built Light](https://appshunter.io/developer/1035541352) | [Squirrel FX LLC](https://appshunter.io/developer/1557764202) |

## What reviewers say

### Simple HDR

[App page](https://appshunter.io/ios/app/simple-hdr/id1035541353)

Capture bracketed 360° images with this app, designed for Ricoh Theta cameras. Choose between Auto and Pro settings for quick HDR landscape creation or light and reflection map generation.

**Highlights:** Capture bracketed 360° images, Create 360° landscapes, Generate light maps, Generate reflection maps, Auto capture setting (3 shots, 5 stops), Pro capture setting (7 shots, 12 stops)

**Features:** macOS Compatibility

**In-app purchases:** none


### HDRI Prep

[App page](https://appshunter.io/ios/app/hdri-prep-vfx-hdr-brackets/id1616103466)

This utility helps visual effects professionals create HDRI bracketing sets for RICOH THETA 360 cameras. It allows for quick definition, organization, and reuse of bracket settings, streamlining on-set workflows for HDR photography.

**Highlights:** Define custom bracket sets (3-19 photos, 1-3 stops apart), Set Aperture, ISO, and Color Temperature for all photos at once, Define Center Shutter Speed to extend exposures, Name, organize, and reorder brackets by show, Duplicate and move bracket sets between shows, View photos read directly from the camera, Quickly adjust camera speaker volume and auto-sleep time

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple HDR free?

Simple HDR costs $9.99, with no in-app purchases.

### Is HDRI Prep free?

HDRI Prep costs $9.99, with no in-app purchases.

### Do Simple HDR or HDRI Prep have ads?

Neither Simple HDR nor HDRI Prep shows ads.

### Which is updated more often, Simple HDR or HDRI Prep?

Simple HDR ships an update every 2 months, and HDRI Prep every 9 months. Most recently, Simple HDR was updated on October 24, 2026 and HDRI Prep on October 24, 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.*