I got to try the Android version. Music and sound design was amazing, although I felt that the controls could be refined as it doesn't feel like you have full control of the planets. The gameplay could use a bit more variation as well, such as collecting stuff like upgrades/coins you could use for upgrades etc., or just something else other than moving planets around. But overall nice game!
Also, it is probably just me, but those broken planet pieces look like apple slices from McDonald's kids' meals.