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3DF Zephyr vs KIRI Engine: catalog facts
3DF Zephyr	KIRI Engine
Best for: Turning photo or drone surveys into 3D models and terrain data	Best for: Capturing real objects as 3D models with a phone
Free + paid options A limited free edition is offered; full versions are paid, with a free trial.	Free + paid options Free to download; some features require a paid plan.
Windows	Android, iOS, Web
Combines photogrammetry and laser scans in one application Outputs orthophotos, DTM and DSM as well as meshes All 4 strengths for 3DF Zephyr Combines photogrammetry and laser scans in one application Outputs orthophotos, DTM and DSM as well as meshes Multi-GPU accelerated reconstruction Free edition available	Several capture methods including photogrammetry, LiDAR and Gaussian splatting Can scan shiny and transparent objects All 4 strengths for KIRI Engine Several capture methods including photogrammetry, LiDAR and Gaussian splatting Can scan shiny and transparent objects Converts Gaussian splats to meshes Works on any smartphone and in the browser
Full feature set requires a paid licence Windows only	LiDAR features need a LiDAR-equipped iOS device Processing relies on the service rather than your own machine
Downloadable app	Downloadable app, Web application
Not open source	Not open source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for 3DF Zephyr 3dflow.net/3df-zephyr-photogrammetry-software Catalog checked October 1, 2026	Official website Full listing and sources Sources for KIRI Engine kiriengine.app Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.