exit the app before installing

[mencoBot1]

I have a scenario where my main application (MainApp.app) includes a helper application (Helper.app) within its bundle:
/Applications/MainApp.app/Contents/Helpers/Helper.app

The Helper.app integrates Sparkle and is responsible for updating MainApp.app. Since Helper.app is bundled inside MainApp.app, when an update is performed, both MainApp.app and Helper.app should be updated together.

Before triggering the update, I ensure that MainApp.app has already exited. Then, I initiate the Sparkle update process in Helper.app as follows:

// appBundle： /Applications/MainApp.app
sparkleUpdater = SPUUpdater(hostBundle: appBundle, applicationBundle: appBundle...)
sparkleUpdater.start()
sparkleUpdater.checkForUpdates()

I have the following questions:

• Will the update succeed in this setup?
• Will Helper.app be terminated during the update process?
• If Helper.app is not terminated, will replacing MainApp.app (which contains Helper.app) work correctly, or could there be issues due to the running process?
• Is there a better approach for handling updates in this scenario?

I appreciate any insights or recommendations. Thanks!