# HDRI Studio: 360° HDR Camera — Turn any place into an .exr

> Turn any place into an .exr (iPhone/iPad app by Gianluca Gatto.)

- Source: https://appshunter.io/ios/app/hdri-studio-360-hdr-camera/id6789729995 (this page in markdown: same URL + `.md`)
- Developer: [Gianluca Gatto](https://appshunter.io/developer/6789729997)
- Category: Photo & Video, Graphics & Design
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 71 MB
- Languages: American English
- Released: 2026-07-23
- Data updated: 2026-10-10
- User reviews in markdown: https://appshunter.io/ios/app/hdri-studio-360-hdr-camera/id6789729995/reviews.md

## What is HDRI Studio?

Light your 3D scenes with real light. HDRI Studio turns the place you are standing in into a relative scene-linear, 32-bit OpenEXR (.exr) environment map for image-based lighting, realistic reflections, VFX, archviz, and product rendering.

HDRI Studio guides your iPhone through 26 positions around a full sphere and automatically captures RAW exposure brackets when you are aimed and steady. Hosted processing merges the brackets, corrects the ultra-wide lens, and stitches a 360° equirectangular panorama. Save the finished .exr to Files or export it for use in any 3D or compositing tool that supports OpenEXR. No chrome ball, dedicated panorama camera, or capture rig is required.

OUTPUT YOU CAN USE
• RGB, 32-bit floating-point OpenEXR (.exr)
• Exact 2:1 equirectangular 360° panorama
• PIZ compression with linear Rec.709/D65 color metadata
• 4K (4096 × 2048), with 8K (8192 × 4096) where available
• Standard float channels for environment and world textures

CAPTURE WITH CONFIDENCE
• Guided 26-point coverage, including zenith and nadir
• Configurable RAW exposure brackets and dynamic range
• Automatic capture only when aimed and steady
• Locked focus and white balance across the sphere
• Lens calibration and measured device pose for stitching

PREVIEW, INSPECT, EXPORT
• Explore results in a swipe- and gyro-controlled 360° viewer
• Adjust preview exposure from −4 to +6 EV without changing the EXR
• Inspect dimensions, channels, compression, file size, peak and mean radiance, and contrast EV
• Open compatible .exr files from Files and inspect them in your Library
• Review every capture position and its brackets in the shot gallery
• Reprocess a saved capture at another available resolution
• Keep finished EXRs in your private iCloud Drive with iCloud Library (RAW brackets stay on device)
• Export the complete original RAW bracket set plus capture metadata with Pro

FOR REAL 3D WORKFLOWS
Import the .exr as an environment or world texture for:
• Image-based lighting and realistic reflections
• Look development and rendering
• VFX and compositing
• Architecture and product visualization

Use it in Blender, Unreal Engine, Nuke, Houdini, Cinema 4D, Maya, and other OpenEXR-compatible tools. Your captures remain yours to use in personal or commercial projects.

NO ACCOUNT REQUIRED
Capture, Library access, previews, and downloaded EXRs do not require a subscription. Two starter render credits are included. Additional hosted renders use one-time render credits or Pro. 4K uses one credit; 8K uses four. Failed or cancelled renders return reserved credits.

Processing requires an internet connection. Captures and downloaded EXRs remain on your iPhone until you delete them. If you enable iCloud Library, finished EXRs, thumbnails, and Library metadata are also stored in your private iCloud Drive so they can be restored; original RAW brackets are not uploaded to iCloud. Temporary hosted results are retained privately for up to 7 days so interrupted downloads can resume.

REQUIREMENTS
• iOS 17 or later
• An iPhone with a RAW-capable ultra-wide camera
• Internet connection for processing

Privacy Policy: https://hdristudio.app/privacy
Terms of Use: https://hdristudio.app/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro | $19.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 8K Render Credit | $7.99 | one-time |
| 4K Render Credit | $2.99 | one-time |



## Version history (last 5 releases)

### 1.0.11 — 2026-10-05

Faster, more reliable uploads that keep going in the background. Unused Pro credits now carry over, and the app reminds you when your panorama is ready.

### 1.0.9 — 2026-09-28

Large uploads now finish reliably: the app waits while the server saves your capture instead of giving up. Capture tips are short and calm. The download is half the size. Floor cleanup no longer leaves ghosts: it only fills spots your other shots agree on.

### 1.0.8 — 2026-09-26

New: a shot gallery for every capture. Review all 26 positions and the brackets behind each one, and export the original RAW set with Pro.

Capturing is smoother: capture, upload and your finished panorama now happen on one screen, the trigger is steadier when you hold the phone by hand, and a clear orange dot shows any spot worth reshooting.

Also: steadier focus and lens setup at the start of each capture, large 8K downloads that finish on slow connections, a clearer Get credits page, and a fresh blue look.

### 1.0.7 — 2026-09-15

Improved capture performance, reduced upload storage, and refined processing screens. Bug fixes and reliability improvements.

### 1.0.6 — 2026-08-28

This update improves upload reliability and credit safety. Accepted renders keep progressing when you navigate away or the app moves to the background, completion waits for final credit settlement, and retries stay blocked until a failed or cancelled render has safely returned its reserved credits.

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## Related topics

[hdri](https://appshunter.io/ios/topics/hdri) · [hdri studio](https://appshunter.io/ios/topics/hdri-studio) · [hdri prep](https://appshunter.io/ios/topics/hdri-prep) · [hdr fx](https://appshunter.io/ios/topics/hdr-fx)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*