Quick Terrain Modeler

Quick Terrain Modeler (QTM) is a Windows desktop package from Applied Imagery, a company in Chevy Chase, Maryland. It loads, renders and analyzes large 3D point clouds and terrain models. The software was built mainly for LiDAR, but it doesn't depend on one sensor type. It also takes photogrammetry, radar, sonar, full motion video, and terrestrial, airborne or space-based data, and several of these sources can be combined in a single scene. The vendor says there are hundreds of tools. Among them are surface generation, measurement, building extraction, statistical analysis, above ground level analysis, real-time point cloud filtering, and conversion between coordinate systems and vertical datums. Its main users have long been in defense and intelligence: the National Geospatial-Intelligence Agency has bought maintenance support for it. It also suits geospatial analysts, surveyors and researchers who need fast visual work with point clouds. Applied Imagery doesn't publish prices. Buyers fill in a quote form, can download a free trial, and choose from support tiers the vendor calls Open Source, Sentinel and Flex. Version 8.4.4 came out in May 2026 with new surface generation tools, editing improvements, and changes to the ATAK and route export workflows. QTM has no public pricing, runs only on Windows, and has almost no independent user reviews. It is an analysis tool for single users on a desktop, not an asset management or maintenance platform.