Flying Stars runs in the browser, and every device below can also install it with its own icon and window. Sign in with the same account and your projects and your plan are there.
Flying Stars gets its own icon in the Dock and opens in its own window. This needs macOS Sonoma (14) or later.
In Chrome or Edge, click the install icon at the right end of the address bar instead.
Get Flying Stars from the Microsoft Store.
Or open the web app in Edge or Chrome and click the install icon at the right end of the address bar.
A Google Play version is in testing.
It then sits in the launcher and the shelf like any other app.
Pro belongs to your account, not to one device. Upgrade once from inside the web app, and Pro is on wherever you sign in.
Your account and projects are covered by the same privacy policy and terms everywhere.