This article will suggest to customers the necessary applications. These apps are not available in the theme package, you need to download them on Shopify App. Besides, it has been tested and used by us before recommending to customers. However, if there are any problems while using the app, please contact the app's support for assistance.
1. The4 Toolkit
The4 Toolkit is a free app for users of The4 Shopify themes. In its current version, it allows your customers to add products to Wishlist and Compare, and store them in their account.
Your customers can view these compare lists, and wishlists on any device and just need to log in to their customer account later on.
Note: This app is only compatible for customers using Shopify 2.0 supported Themes.
Link to download: The4 Toolkit
Follow this video to use the app: