# Simple HDR vs HDRI Prep

The clearest difference is update cadence: Simple HDR at every 2 months against HDRI Prep's every 6 months. Simple HDR also leads on chart position (#192 vs unranked) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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 6 months. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | — |
| Best chart rank | **#192** | — |
| Size | 2 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| 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)

**Currently charting:** #192 Top Paid · Photo & Video (US App Store)

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/id1616103466)

**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 6 months. Most recently, Simple HDR was updated on September 15, 2026 and HDRI Prep on September 10, 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.*