AR / 3D product visualization — Sketchfab vs Cylindo vs Threekit?

Three serious vendors, different fits:

• Cylindo — furniture-specialist. Built for sofa / chair / casegoods configurators. Auto-generates 360-degree spins from 3D models, supports fabric/finish swap in real time, integrates with most configurators including Magento. Premium pricing ($1.5k-$5k/mo). Best fit for medium-large furniture brands.
• Threekit — broader (furniture, jewelry, apparel). Powerful 3D + AR + product configurator unified platform. Steep learning curve + higher TCO. Best fit for brands wanting one vendor for both visualization + configurator (replacing Magento Custom Options entirely).
• Sketchfab — cheapest entry point. Great for static 3D model viewer + iOS Quick Look + Android Scene Viewer integration via <model-viewer> Web Component. No real-time configurator overlay. Best fit for <100 SKU brands wanting AR-on-PDP without the Cylindo / Threekit budget.

Implementation: all three plug into Magento via product attribute holding the 3D model URL or vendor SKU. Front-end loads the viewer lazily on PDP scroll-into-view. Mobile AR triggers via the standard <model-viewer ar> tag — iOS uses USDZ, Android uses GLB.

Conversion lift: 1.8-3.2x AR-on / AR-off on furniture PDPs in the data I see, especially at AOV $1,500+. Pays back the integration cost within 60-90 days for most mid-market brands.