Certainly! Product Customizer offers all shops a free 14-day trial period so that you can test the app and ensure it works for your set up.
If you're a designer, developer, Shopify expert, or affiliate, you can install the app with no charge on a Shopify Test Shop. You can create a test shop in your Shopify Partner Account.
We love working with other Shopify Partners, and would love to hear your feedback on Product Customizer.