Publishing an Android TWA App on the Samsung Galaxy Store

While the Google Play Store remains the largest distribution channel for Android devices, developers can expand their market presence by targeting alternative application stores. The Samsung Galaxy Store comes pre-installed on hundreds of millions of Samsung smartphones and tablets worldwide. Publishing your Trusted Web Activity (TWA) on this marketplace allows you to capture additional traffic and tap into localized promotional events managed directly by Samsung.

Why Target the Samsung Galaxy Store with a TWA?

Samsung device owners actively use the Galaxy Store to discover apps curated specifically for their hardware. Because a TWA is compiled into standard APK and AAB packages, the exact same binaries produced for the Google Play Store can be distributed on the Galaxy Store without modifying your underlying application logic.

Furthermore, registering as a seller on the Samsung Galaxy Store has distinct procedural advantages, including different promotional feature opportunities and dedicated support services for developers looking to optimize their conversion rates in specific regions.

Prerequisites for Submission

Before launching your submission on the Samsung Seller Portal, ensure you have gathered the necessary build artifacts and assets. The listing process requires precise package matching and proof of origin security certificates.

• A Signed Build: You need a signed APK or AAB build generated using a valid release keystore. This build must be identical in configuration to your Google Play version.
• Domain Ownership: Your Digital Asset Links file must remain live on your domain. Although you are publishing on the Samsung Galaxy Store, the TWA engine still checks your web server for the assetlinks.json verification file.
• Store Graphics: Ready your marketing materials, including a 512x512 app icon, high-resolution screenshots, and a landscape promotional banner.

Step 1: Registering Your Samsung Seller Account

To distribute your TWA, you must register as a developer on the Samsung Seller Portal. Navigate to the registration gateway and establish a personal or corporate account.

Unlike Google Play, which requires a one-off 25 USD registration fee, joining the Samsung Seller Portal is free. However, if you are registering as a corporate entity, you must complete an identity verification step which may take several business days to complete. Ensure your business details align exactly with your official corporate registration documents to prevent verification delays.

Step 2: Creating and Customising the Application Listing

Once inside the Samsung Seller Portal dashboard, click on the Add New Application button. Select the Android application type to launch the metadata setup pipeline. Here, you will define the core characteristics of your product:

Language and Content Localization: Enter your default language, product title, and description. Translate these fields for key international target markets to improve organic store visibility.

Categorisation and Safety Ratings: Select the correct category for your web app. You must complete a content self-assessment questionnaire to define age restrictions and content ratings based on the functionality offered by your platform.

Step 3: Uploading the Binary and Verifying Core Requirements

Navigate to the Binary tab within your application configuration portal. Upload your signed production Android App Bundle (AAB) or Android Package (APK). During the upload process, the Samsung Seller Portal parser reads your package name, version codes, and hardware requirement variables.

Keep in mind that when the app is installed from the Samsung Galaxy Store, the device will still look up the Digital Asset Links from your website to verify that the app package has the right to display the target site inside the full-screen browser frame. Ensure your server configuration remains active and accessible.

Step 4: Navigating the Review and Validation Process

Once your metadata is complete and your binary is successfully uploaded, submit your application for review. Samsung employs a strict, multi-phase testing system that combines automated security scans with manual verification on physical Samsung hardware.

Reviewers will load your TWA to test its functionality. To avoid rejection, ensure your app meets these conditions:

• The app must load a valid interface and must not display a raw desktop view. Your website must be responsive.
• The application must handle basic offline connectivity failures elegantly by showing an offline placeholder instead of a standard browser timeout message.
• Third-party login services and OAuth configurations must operate seamlessly within the container layout.

If the review team identifies issues, they will provide detailed logs and device screenshots highlighting the failure points. Address these issues in your source code or web asset configurations, update your build version, and upload the replacement binary to resolve the ticket.