Shopify has a feature to duplicate a theme. This is handy if you want to test out apps prior to installing it in your shop's theme.


Pre-requisite

Prior to testing this out, at least one subscription plan must have been saved already.

  1. Go to the app, then Manage Plans.
  2.  Open the existing subscription: Coffee cup subscription, then expand Products.
  3. This is what we can use for testing after installation on the duplicated theme.


Duplicate your theme

  1. Login to your shop
  2. Under SALES CHANNELS, click Online Store, then Themes
  3. Scroll down below to see what other themes are installed aside from the current theme
  4. In this example, Simple is installed. We'll duplicate that.
  5. It should create a new entry: Copy of Simple
  6. I just renamed it into Simple-Duplicate


Install in the duplicated theme

  1. Go back to the app from the store then go to installation. Select Simple from the 1st dropdown, then the duplicate theme (Simple-Duplicate) in the 2nd dropdown.
  2. Click Auto-install, then confirm the values you selected. Click Yes, proceed with install.
  3. You should get the prompt at the bottom of the screen when the theme has been updated.
  4. Go back to the Online Store > Themes, the scroll down to Simple-Duplicate. Click Actions, then Preview.
  5. Open a product that is included in any subscription plans (see Pre-requisite steps). It should look like this.

This way, you'll be able to test how the app will look like without touching your live store.