Submarine is a tokenized payment platform that allows Shopify Plus merchants to build bespoke customer experiences around Subscriptions, Memberships, Pre-sales, Crowdfunding, Saved payment methods, One-click purchases and upsells.
As you'll read in the changelog below, something very exciting was added this week. You can now filter collection and search results pages using metafields!
Check out the official documentation
Have a project requirement for adding a membership program to a Shopify store? Check out Conjured Memberships. Digital memberships are a great way to generate recurring revenue by providing perks such as free shipping, members-only discounts, first looks at new product drops, and access to gated content.