Meshroom is described as 'Free, open-source 3D Reconstruction Software based on the AliceVision Photogrammetric Computer Vision framework' and is a 3D Modeler in the photos & graphics category. There are more than 10 alternatives to Meshroom for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Meshroom alternative is Agisoft Metashape. It's not free, so if you're looking for a free alternative, you could try 3DF Zephyr or WebODM. Other great apps like Meshroom are RealityCapture, Autodesk ReCap, Regard3D and PhotoModeler.