What are some alternatives?
When comparing Mirra and True Fit, you can also consider the following products
Amazon Sumerian - A cloud platform to create VR, AR, and 3D experiences
Virtusize - Virtual Fitting
Wikitude Studio - Wikitude Studio is a web-based AR solution that allows you to create, manage and publish your AR project from an mobile application.
Fit Analytics - Fit Analytics provides the size recommendation engine for ecommerce vertical.
Reflekt One - REFLEKT ONE is the award-winning Augmented Reality Platform for maintenance, operations and training on mobile devices and with full Hololens integration.
Metail - Metal with Swift Metal (not Metail) is a low-level API from Apple that combines OpenGL and OpenCL into a single interface.