Luma AI Alternatives for Gaussian Splatting Capture
By Michael Rubloff · Updated July 9, 2026
Luma AI made its name with free radiance field capture, but since Dream Machine became the company’s flagship, many capture users are looking for actively developed alternatives. Based on our daily coverage of the field, these are the five we’d point you to.
Polycam — the all-in-one scanner
Polycam runs on iOS, Android, and the web, and has supported 3D Gaussian Splatting since September 2023 alongside LiDAR and photogrammetry. A free tier gets you started; a Pro subscription unlocks additional capture and export features.
Scaniverse — free, unlimited, on-device
Niantic’s Scaniverse is the only mobile app offering free, unlimited, on-device splat processing — most captures finish in under 90 seconds with no cloud upload required. Its compressed .SPZ format imports directly into Niantic Studio.
KIRI Engine — the feature workhorse
KIRI Engine covers iOS, Android, and web with Gaussian Splatting, photogrammetry, LiDAR object capture, and featureless-object scanning. Free tier available.
Gaussian SplatKing — capture built for training pipelines
SplatKing is our own free iOS capture app, built specifically as a reliable input source for downstream 3DGS training: dual-lens Video and Photo modes, LiDAR mode, 4K video, locked camera settings, and packaged export ready for any reconstruction pipeline. (Disclosure: SplatKing is developed by Radiance Fields.)
Postshot — train locally instead
If you’d rather skip the cloud entirely and train from your own photos or video, Postshot on Windows is the most approachable local Gaussian Splatting trainer — free tier, NVIDIA GPU required. Pair it with any capture app on this list.
Which should you pick?
Phone-only and free: Scaniverse. All-in-one scanning with web editing: Polycam. Capture headed for a serious training pipeline: SplatKing feeding Postshot or Brush.
New to the technique? Start with What is Gaussian Splatting? and our capture guide, then check the gear buyer’s guide.