There is no expiration date for free trial, however, these following restrictions will apply:
Standard
Example of Use:
See here for helpful tips:
Standard – suited to manual, CAD, Coded Targets, and single photo projects.
Premium
Example of Use:
See here for helpful tips:
PhotoModeler Premium – suited to dense surface modeling, and UAS projects.
PhotoModeler End User License Agreement – Effective March 1, 2018