Flexible commerce that connects with customers

Build tailored experiences on top of Shopify Plus to delight customers, drive growth, and streamline operations.

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Trusted by Shopify Plus merchants around the world

Trusted by some of the best

Flexible, powerful, and elegant.

We’ve built a platform to meet the needs of your business and customers, no matter how demanding or complex.

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Recurring orders that play by your rules.

Build out your subscription program based on the needs of your customers instead of shoehorning your business model into someone else’s app.

  • Configure your own rules using built-in workflow tools
  • Extend things further with our powerful GraphQL API
  • Build a 100% tailored customer experience with our Storefront API
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Reward and retain your best customers.

Create a paid membership program that truly rewards your most loyal - and profitable - customers.

  • Set and manage available tiers
  • Offer flexibility around membership periods, renewals and cancellation
  • Gate products, content and services
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Leverage your fanbase.

Build the perfect campaign to raise funds for your next big thing - all within your existing Shopify Plus store.

  • Take full or part-payment
  • Define reward tiers in units sold or monetary value
  • Leverage Shopify order and fulfilment management
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Drop it like it’s hot.

Generate hype and manage limited inventory for new product releases.

  • Define the key dates of your campaign lifecycle
  • Comply with charge-on-fulfilment legal requirements
  • Integrate with Shopify Flow for unlimited flexibility
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Go outside the box

Doing something funky, like multi-currency upsells, saving cards for later, or needing to pass tokenised card details to your ERP?

Submarine’s flexible API lets you build whatever you need.

  • Access core functionality via REST and GraphQL APIs
  • Use and extend our existing open source client libraries and examples
  • Get solution support direct from our team
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“The common response to all our needs was ‘sorry, you can only do that in the primary store currency’. Then we stumbled upon Submarine. It’s literally why we are always being told we’re in the top 1% of Shopify merchants for our performance across all revenue metrics.”
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Michael Jankie

Founder, Natural Patch

Built for Shopify Plus

We minimise our application footprint so that you can maximise customer experience.

Native Checkout

Integrates directly with Shopify’s highly optimised checkout.

Shopify Scripts

Leverage the power of Shopify Scripts for complex pricing logic.

Shopify Flow

Augment business logic and integrate with hundreds of other apps out of the box.

Storefront API

Build out rich customer-facing experiences on Liquid or headless storefronts.

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A developer-first experience

Submarine is built by Shopify developers, for Shopify developers.

We aim to provide the APIs, tools and documentation you need to build a world-class experience - and then get out of your way.

“Submarine let us completely revamp and streamline the checkout experience for Feather’s rental customers, while also saving their ops team innumerable hours matching up data from different systems. Best of all - it was a smooth launch that “just worked” and left them super happy.”

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Sean Hopkins

Director of Strategy, Lucid

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Leveraged by premier Shopify Plus agencies globally

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Ready to dive in?

Learn how Submarine can unlock new opportunities for your brand today.

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