Shopify Checkout Sheet Kit is a library that enables mobile apps to provide the world’s highest converting, customizable, one-page checkout within the app. The presented experience is a fully-featured checkout that preserves all of the store customizations: Checkout UI extensions, Functions, branding, and more. It also provides platform idiomatic defaults such as support for light and dark mode, and convenient developer APIs to embed, customize, and follow the lifecycle of the checkout experience.

## Repositories

The following repositories contain the source code for Checkout Sheet Kit:

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  <a class="resource-card" href="https://github.com/Shopify/checkout-sheet-kit-swift" data-theme-mode="">
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      Checkout Sheet Kit for Swift
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    <p class="resource-card__description">A Swift library for presenting the Shopify checkout experience.</p>
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  <a class="resource-card" href="https://github.com/Shopify/checkout-sheet-kit-android" data-theme-mode="">
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      Checkout Sheet Kit for Android
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    <p class="resource-card__description">An Android library for presenting the Shopify checkout experience.</p>
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  <a class="resource-card" href="https://github.com/Shopify/checkout-sheet-kit-react-native" data-theme-mode="">
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      Checkout Sheet Kit for React Native
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    <p class="resource-card__description">A React Native module for presenting the Shopify checkout experience.</p>
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> Note:
The checkout experience is powered using embedded Shopify web checkout. The library implements a native bridge and protocol that abstracts all of the embedding logic behind simple-to-use native APIs with additional capabilities to pre-fill buyer identity, optimize how the checkout is loaded, how it is presented, and more. Check out our blog to [learn how Checkout Sheet Kit is built](https://www.shopify.com/partners/blog/mobile-checkout-sdks-for-ios-and-android).

## Next steps

- Learn how to [authenticate checkouts with the Customer Account API](/docs/storefronts/headless/mobile-apps/checkout-sheet-kit/authenticate-checkouts)
- Learn how to [configure your app for offsite payments](/docs/storefronts/headless/mobile-apps/checkout-sheet-kit/offsite-payments)