Darragh here from Airship Support. Thanks for writing into our forums.
So, there is no way to directly link into the Playstore but you can configure a deep link to a button press that will redirect you to the App on the Playstore so your users can attempt to download it.
Deep Linking On Android: https://docs.airship.com/platform/android/getting-started/#deep-linking
I hope that this help.
Technical Support Engineer
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