Yes, Celestial Assault is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Celestial Assault is free.
To get estimated revenue of Celestial Assault app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
Sorry, this can't compare with Gradius or R type, Ultimately gameplay is more important then grinding through repetitive levels to level up, You have to have a reason to want to level up, that's it. The graphics seem well drawn, there is potential if it were reworked
