CozyBlanket Pro, the AI-assisted retopology app that started on iPad, now runs on Windows and macOS too. It’s built for the job most 3D artists dread: turning a dense sculpt or scan into clean, animation-ready topology, then unwrapping and baking it.

What changed

Desktop editions. CG Channel’s updated coverage (Nov 3) confirms Windows and macOS versions alongside the iPad app, sold as separate perpetual licenses. The iPad version needs iPadOS 18.6 or later.

Guided AI retopology. You draw topology guides on the high-poly mesh with the Pencil tool and the AI fills in the patches between them. Sparseal describes the predictor as continuously analyzing both the high-poly and low-poly meshes and suggesting edits in real time. You can add guides, change the view, or edit vertices, edges and faces by hand.

UVs from a few seams. Draw the first UV seams and the app proposes the rest, which you can accept or reject. Packing is GPU-based, and the 2D layout shows on the 3D surface as you work.

Baking and export. Vertex color, normal and ambient occlusion maps from high to low poly, with UDIM support and custom bake cages. Meshes export as OBJ or glTF, textures as PNG, JPG, TIFF or EXR.

Local, synthetic-trained models. Sparseal says the models were developed in-house, trained exclusively on synthetic data, and run entirely on your device, offline.

Why it matters for designers

Retopology is slow, manual and hard to delegate, and it’s exactly the step that stands between a nice AI-generated or scanned model and something you can rig, animate or ship in a game. A tool that keeps you in control of edge flow but does the fill-in work could take real hours out of that.

The local, synthetic-data approach matters too. A lot of AI 3D tools send your mesh to a cloud service, which is awkward for unreleased client characters. Here, by Sparseal’s account, nothing leaves the machine.

What to watch out for

Guide placement drives the result. CG Channel notes early demos showed some unconventional facial topology, so expect to spend your time on good guides around faces and joints rather than accepting the first pass.

When we checked, Sparseal’s own page said desktop downloads were “temporarily unavailable.” Try the demo once downloads are back and confirm it runs on your OS before you buy, which is what Sparseal recommends anyway.

Pro isn’t an upgrade to the original CozyBlanket. It’s a separate app with a different file format and no upgrade path, and the original gets maintenance updates only. CG Channel reports the original has been unlisted from the App Store, so new buyers can only get Pro. The Bridge feature for sharing scenes with other 3D apps is listed as coming soon, not shipped.