KIRI Engine vs OpenReco

KIRI Engine is a 3D scanning application that creates models and visualizations using photogrammetry, Neural Surface Reconstruction, and 3D Gaussian Splatting. Photo Scan creates 3D models from photos. LiDAR Scan supports model scans, floor plans, and quick scene visualizations on LiDAR-equipped iOS devices, while Featureless Object Scan is designed for shiny, reflective, transparent, and low-texture objects. The free Basic plan costs nothing and permits up to 150 photos and 2 GB per scan, with unlimited scans and free exports. Pro costs $17.99 a month or $79.99 a year, and raises the limits to 500 photos and 5 GB per scan while adding faster queue processing and advanced scanning and modeling features. The API offers Photo Scan, Featureless Scan, and 3DGS Scan; each API call uses one credit. Credits cost 1.00 USD each, with a 500-credit minimum recharge and 10 free test credits at sign-up. Other listed tools include a website model embedder, a UE5 plug-in, and STL export. Uploaded photos and videos are processed on cloud servers, and local PC scanning is not on the company's roadmap at the moment.

OpenReco converts drone and camera imagery into dense point clouds, textured meshes, orthomosaics, and elevation models. Its node-based workspace can run a complete reconstruction graph or individual stages, while caching keeps results reproducible. Reconstruction uses COLMAP CUDA for GPU multi-view stereo and includes an automatic CPU fallback. Models can be georeferenced from EXIF GPS data or ground control points. Analysis tools measure volume, profile, area, and distance, and generate NDVI, ExG, and VARI vegetation maps. Listed exports include LAS, LAZ, PLY, OBJ, GeoTIFF, GeoJSON, DXF, CSV, 3D Tiles, and contour SHP. OpenReco is MIT licensed and open source. Desktop downloads are listed for Windows, macOS, and Linux. The site says no account or subscription is needed to download it, and the Free plan is free. Named target fields include surveying and mapping, agriculture and forestry, VFX and heritage, construction and earthworks, and robotics and research.