# HDRI vs HDRI Prep

The clearest difference is price: HDRI Prep at $9.99 against HDRI's $13.99. HDRI's advantage is iOS requirement (13.0 vs 17.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

HDRI costs $13.99 and HDRI Prep $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HDRI ships an update every 8 months, HDRI Prep every 9 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | HDRI | HDRI Prep |
| --- | --- | --- |
| Price | $13.99 | **$9.99** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 3 MB | 11 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Goldgewicht Consulting](https://appshunter.io/developer/1212140131) | [Squirrel FX LLC](https://appshunter.io/developer/1557764202) |

## What reviewers say

### HDRI

[App page](https://appshunter.io/ios/app/hdri/id1399778188)

Create photorealistic 3D scenes with this powerful tool. It helps visualize virtual objects in real-world environments by capturing and processing 360 panoramic images for lighting and reflection.

**Highlights:** Photorealistic 3D image creation, 360 panoramic camera control, Lighting and reflection source for 3D scenes, Supports HDR and EXR formats, Ideal for VFX, AR, and VR applications

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

**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 HDRI free?

HDRI costs $13.99, with no in-app purchases.

### Is HDRI Prep free?

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

### Do HDRI or HDRI Prep have ads?

Neither HDRI nor HDRI Prep shows ads.

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

HDRI ships an update every 8 months, and HDRI Prep every 9 months. Most recently, HDRI was updated on November 2, 2026 and HDRI Prep on November 3, 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.*