Is there a fastlane for the Microsoft Store?

What fastlane does for iOS and Android

fastlane's two store tools are deliver for App Store Connect and supply for Google Play. deliver uploads the build, metadata, screenshots, App Preview videos and What's new for each language, and can submit the version for review. supply uploads APKs or app bundles, listing text, images and screenshots, and changelogs for each language, and moves builds between tracks like internal, beta and production, with gradual rollout.

What people like about it is that the whole release lives in files in the repo and one command sends it. The Microsoft Store doesn't have a tool that does all of that, so the question is which pieces you can get and from where.

fastlane has no Microsoft Store action

fastlane's built-in actions cover the App Store and Google Play. There's nothing for Partner Center among them. Its docs also say fastlane is officially supported on macOS, with Linux and Windows only partly supported.

The sapfire plugin

fastlane-plugin-sapfire is an MIT licensed community plugin with actions for MSBuild, NuGet and the Microsoft Store. For the Store, it has:

• ms_credentials to set the Microsoft Entra (Azure AD) credentials the other actions use.
• upload_ms_store to upload a package to Partner Center. Its docs say it doesn't publish the update, so you do that part by hand.
• upload_package_flight to upload a package as a new package flight.
• associate_ms_store, build_uwp_app and app_certification for building, Store association and running the Windows App Certification Kit.

The Store actions run on Windows only. There are no actions for listing text, screenshots or release notes. The latest version on RubyGems is 1.3.0 from June 2025, and the repository hasn't had a commit since then. It's a fine pick if your app is built with MSBuild and you only need the upload step inside an existing fastlane setup.

Microsoft's own tools

The msstore CLI is Microsoft's open source command line tool. It publishes MSIX packages and also MSI and EXE apps, handles package flights and gradual rollout, and updates listing metadata from JSON you download, edit and send back. It's still in preview, and Microsoft's overview says app updates through it work for free products only for now.

StoreBroker is a PowerShell module built on the Store submission API. It's the closest thing to deliver. Your listing lives in XML files, one per language, with the description, features, keywords, release notes and screenshots, and it creates app, flight and add-on submissions. You write or translate each language yourself.

Both are free. The msstore and StoreBroker comparison goes into what each one is good at.

How StoreFast covers the same jobs

StoreFast publishes MSIX apps to the Microsoft Store. You connect your Partner Center account once, and then:

• Builds. You upload the .msix, and StoreFast checks the package name and version before anything goes to Microsoft.
• Release notes. You write What's new once in English, or hand it a changelog, and it's translated into every listing language in your app's writing style and kept under the 1,500 character limit.
• Listing text and screenshots. The listing editor changes the description, features and search terms in every language, adds languages, fills in what's missing, and takes one set of screenshots for every language. The listing automation guide shows a script for it.
• Submitting. It submits the update for certification and tracks it, and it can hold the update after certification until you publish it in Partner Center.
• CI. The GitHub Action legendaryspy/storefast-publish sends the package with notes from your changelog or GitHub release. The GitHub Actions guide has the workflow. Anywhere else, the REST API works with curl.
• Agents. Claude Code, Cursor, Codex and other coding agents connect to its MCP server, and you approve each submission before it goes out.

The first submission of a new app still happens in Partner Center, as Microsoft requires. That's true for every tool on this page. StoreFast doesn't publish EXE or MSI apps or do gradual rollout yet.

fastlane actions and their Microsoft Store equivalents

Calling StoreFast from a fastlane lane

If you'd like Windows releases to start from the same Fastfile as your other platforms, a lane can run a script that calls the StoreFast API. It needs an API key that can publish.

platform :windows do
  lane :store do
    sh("./publish-to-store.sh")
  end
end

API=https://storefast.app/api/v1
AUTH="Authorization: Bearer $STOREFAST_API_KEY"

# Start a release, upload the .msix and finish it, as the API reference shows
# Then write What's new once and translate it into every listing language
curl -X POST -H "$AUTH" -H 'Content-Type: application/json' \
  -d '{"english":"- Starts faster."}' \
  $API/releases/$RELEASE/notes

# Submit it for certification
curl -X POST -H "$AUTH" $API/releases/$RELEASE/submit

The API reference has the upload steps, every field and the status endpoint to poll afterwards. On GitHub, the action does all of this in one step.

Who it's for

Questions

Does fastlane support the Microsoft Store?

Not out of the box. fastlane's built-in actions cover the App Store and Google Play, and its docs say it's officially supported on macOS, with partial support on Linux and Windows. The community plugin fastlane-plugin-sapfire adds an action that uploads a package to Partner Center.

What does fastlane-plugin-sapfire do for the Microsoft Store?

Its upload_ms_store action uploads a package to Partner Center, and upload_package_flight uploads one as a package flight. Its docs say upload_ms_store doesn't publish the update, so you finish that in Partner Center. It has no actions for listing text, screenshots or release notes.

Can I call StoreFast from a fastlane lane?

Yes. StoreFast's REST API works with curl, so a lane can run it with sh, the same way it would run any script. There's no StoreFast fastlane plugin.

Can I keep using fastlane for iOS and Android?

Yes. Nothing here replaces deliver or supply. You keep your lanes for Apple and Google and add a Microsoft Store step next to them.

What does StoreFast cost?

From $12 a month for one app. The API, MCP server and GitHub Action are on the Indie and Studio plans and in the 7-day trial, which needs no card.