01 / Capture
Follow the dots
Aim the crosshair at 26 guided points. The app locks focus and white balance, then shoots a bracketed RAW burst at each one.
Guided HUDBracketed RAW
iPhone → 360° HDRI → OpenEXR
Capture the light of a place.
A guided 26-point iPhone capture becomes a measured 32-bit OpenEXR — a 360° environment you can light any Blender, Unreal or Nuke scene with. No rig, no desktop.
Available now on the App Store · iPhone
OpenEXR·
32-bit float·
Linear·
Equirect 2:1·
4096 × 2048
Output
32-bit EXR
OpenEXR float, linear
Projection
360° · 2:1
Equirectangular
Resolution
4K
4096 × 2048, default
Capture
26 points
Guided bracketed RAW
How it works
From a room to a render, in three moves.
Guided end-to-end — the pipeline handles exposure, focus, merge and stitch. A full 360° is about a minute of standing still.
02 / Process
Merged & stitched
Brackets upload to the hosted server and come back HDR-merged and stitched into one continuous 360° panorama.
HDR mergePose stitch
03 / Export
A real EXR
A linear 32-bit OpenEXR, previewable in the built-in 360° viewer and ready to drop in as world lighting.
BlenderUnrealNukeHoudiniC4D
Shot on iPhone
Real captures, straight out of the pipeline.
No compositing, no touch-ups — each is one HDRI Studio panorama, tone-mapped only so a screen can show it.
Every panorama here was shot on an iPhone and processed by HDRI Studio. Shown as downsized previews of the 4K masters.
Earned fidelity
Measured, not invented.
Most phone panoramas tone-map the light away. HDRI Studio keeps every value your sensor recorded — linear radiance, straight through to the EXR.
- Real linear radiance — no cosmetic tone curve baked in.
- Bracketed for range — windows, lamps and sky held far past a single exposure.
- Nothing fabricated — no AI fill, no painted-in sky.
Radiance · readoutMeasured
Peak Y53.6
Mean Y0.431
Peak / mean124× 7.0 EV
Example readout from a real capture. Every panorama reports its own measured stats inside the app — no fabricated numbers.
App Store pricing
Free to start. Fair to keep.
Capture, library and viewing finished EXRs are always free. Hosted processing uses starter credits, one-time render credits, or Pro.
Free
Enough to try it on a real scene.
$0
2 starter credits, no account
- Capture as much as you like
- Process two 4K HDRIs, free
- Full-quality EXR export
- No account needed
Recommended
Pro
For shooting scenes regularly.
$19.99/ month
20 render credits every month
- Up to 20 4K or 5 8K HDRIs monthly
- Export the raw DNG set
- Everything in Free
- Cancel anytime
Render credits
For the occasional one-off.
$2.99one-time
4K or 8K, never expires
- 4K credit · $2.99
- 8K credit · $7.99
- No subscription
- Credits never expire
A render turns one capture into a finished EXR on the hosted server. 4K uses 1 credit; 8K uses 4. Capturing, your local library, and viewing finished EXRs never need a subscription. Prices shown are U.S. pricing; Apple localizes prices by region.
Available now
Capture your first HDRI.
Download HDRI Studio free and turn a guided iPhone capture into a measured 4K OpenEXR. Two starter render credits are included — no account required.
iOS 17+ · Requires an iPhone with a RAW-capable ultra-wide camera.