Best Gaussian Splatting Apps for Mac in 2026

The useful Mac choices now range from native guided apps to open-source training engines. Pick by the full job: source media, camera reconstruction, local training, cleanup, export, and what happens after the splat exists.

Short answer

Choose Spatial Studio for Mac when you want a guided local photo or video workflow plus a direct path to hosted tours. Choose RadianceKit when you want a native standalone Mac app with detailed training controls, editing, and a one-time purchase. Choose 3D Splat App when you want a free native Mac app with local training, masking, and common splat exports. Choose OpenSplat when you want an open-source engine and are comfortable building and operating a technical pipeline.

Cloud tools remain relevant when the capture is too large for the Mac, the operator does not have Apple silicon, or remote processing matters more than local control.

This comparison was checked against official product pages on July 20, 2026. Features, requirements, and prices can change, so verify the current product page before committing a client workflow.

Mac app comparison

There is no honest single winner because these tools cover different product boundaries. Test your own capture and the final handoff.

Spatial Studio for Mac

Spatial Studio for Mac is a native SwiftUI app for Apple silicon. It accepts photos, image folders, and video, then runs frame preparation, camera reconstruction, health checks, repair paths, and Brush-based Gaussian splat training as one project workflow.

The strongest reason to choose it is the route after local generation. You can inspect and export the scene, or upload the finished splat into Spatial Studio to add waypoints, labels, hotspots, browser sharing, embeds, calls to action, and analytics.

Use it when:

• You want guided defaults instead of maintaining a command-line stack.
• The capture should remain on the Mac until you decide to upload.
• The final deliverable is a property, venue, location, or client tour.
• You need several standard splat export options.

Look elsewhere when you need a permanently account-free app, a pure research environment, deep manual Gaussian editing, or a Windows and Linux desktop workflow.

RadianceKit

RadianceKit is a native Apple silicon application that presents import, camera alignment, Metal training, editing, and export inside one Mac app. Its official site lists simple and expert modes, a brush-based Gaussian editor, several export formats, and a three-day trial followed by a one-time purchase.

It is a strong fit for creators who want a standalone Mac product with visible training controls and local editing. Check its current macOS requirement before downloading because the vendor currently lists macOS 26 Tahoe or later and recommends 16 GB of memory.

Compare it directly with Spatial Studio when the deciding question is standalone editing versus guided tour delivery.

3D Splat App

3D Splat App is a free native Mac app for local Metal training. Its official page lists raw-photo import, COLMAP and Nerfstudio project import, integrated structure from motion, quality presets, loss and PSNR feedback, person segmentation, frame-by-frame mask editing, and PLY, compressed PLY, SPZ, and SOG export.

It is compelling for free experiments and isolated-subject work. It is also an early product, so confirm which listed features are shipping and which remain marked as coming soon.

Compare it directly with Spatial Studio when the deciding question is free local training and masking versus a supported capture-to-published-tour workflow.

OpenSplat

OpenSplat is an open-source Gaussian splatting training implementation with Apple Metal support. It is a good choice when you want source access, automation, custom integration, and control over the training engine.

It is not a like-for-like substitute for a finished Mac app. You still need a dependable way to prepare images, estimate camera poses, build and update the software, inspect the output, and deliver it. That responsibility may be a benefit for a technical team and a cost for a working photographer.

Where cloud tools fit

Local Mac processing is attractive when capture privacy, predictable local access, and review-before-upload matter. Cloud processing is often better when:

• The capture is larger than the Mac can handle comfortably.
• A local job would occupy the workstation for too long.
• The operator uses Windows, Linux, or an Intel Mac.
• A team needs remote processing and shared access.
• The service already fits the required capture type and output.

Compare cloud products on upload limits, retention, output ownership, credits, storage, export formats, support, and publishing. A low generation price can become expensive if cleanup and delivery require several more tools.

How to choose

1. Start with the final deliverable

If the job ends at a file, prioritize training controls, editing, export compatibility, and automation. If the job ends at a client-facing location tour, include authoring, browser delivery, mobile behavior, calls to action, and analytics in the comparison.

2. Check input support

Ask whether the product accepts raw photos, video, an existing COLMAP reconstruction, an existing splat, or a prepared technical dataset. "Supports photos" does not always mean the app also solves camera positions.

3. Check the real local boundary

Confirm what runs on the Mac, whether an account is required, whether processing continues offline, and whether anything uploads automatically. Then check how updates, licensing, and trials work.

4. Test one difficult capture

Use a scene with a doorway, reflective surface, exposure transition, and thin detail. Compare registered cameras, visible artifacts, time to a usable result, memory pressure, export success, and final delivery. One polished demo is weak evidence.

5. Verify the target format

PLY, compressed PLY, SPZ, SOG, .splat, and other formats are not interchangeable in every viewer. Confirm the target platform before building the workflow around an export label.

What we will benchmark next

Spatial Studio does not publish a universal "minutes per scene" claim because Apple chip, memory, input resolution, reconstruction success, training settings, and quality target change the result. A useful benchmark needs matched datasets, fixed settings, time-to-quality, peak memory, thermal conditions, energy, and exported-scene checks.

Until that data is published, judge every Mac app on your own capture rather than a vendor speed headline.

Frequently asked questions

Which Gaussian splatting app is most complete for Mac users?

Spatial Studio for Mac is our first choice when local reconstruction needs a direct path into hosted, guided tours. RadianceKit and 3D Splat App deserve evaluation when detailed native editing or a standalone local workflow matters more.

Do these apps require an internet connection?

Their boundaries differ. Spatial Studio performs reconstruction locally on the Mac, but account, licensing, updates, and optional publishing features can still involve network access. Verify each product's current offline behavior before using it for a sensitive project.

Can a Mac-trained splat be published on the web?

Yes. Spatial Studio can move a locally generated result into the web tour workflow. Other apps may export formats that can be uploaded to a compatible host or viewer.

Should I compare apps on a demo dataset?

Use a demo only to learn the interface. For a buying decision, run the same difficult capture through each app and compare camera recovery, visible artifacts, time, memory pressure, exports, and the final client handoff.

Next step

Follow the Gaussian splatting on Mac guide, then run the same small photo or video capture through two tools. If the result needs to become a guided browser tour, try Spatial Studio for Mac.