What are some alternatives?
When comparing Review Command and Placeit, you can also consider the following products
Mockuuups Studio - Fast and easy way to create product mockups on macOS and Windows.
Smartmockups - Create product screenshots with just a few clicks, for free
Launchkit - LaunchKit is a collection of simple, useful tools for people who create mobile apps.
Celery Project - Celery is an asynchronous task queue/job queue based on distributed message passing.
Magic Mockups - Place your product screenshot in real-life environment.Free iMac and iPad mockups ... read more.
mockDrop - Is a webapp for creating free device mockups including your screenshots.