Via matrixsynth:

This one in via Silent Strike who composed the tracks for the app with a Clavia Nord Modular 1, Micron Alesis, Jomox Mbase, Reason 4 Propellerheads, M-audio Axiom 25, Elektron Drumachine (pic at the bottom of this post). The app does not allow you to manipulate sound, but I thought it was interesting to acknowledge some of the gear used to create the audio for this app. The Waldorf Blofeld and Yamaha AN200 pictured however were not used.

Looks like Silent Strike had a studio supervisor involved.

There is also info on the app itself.

Gravitarium 2 combines music, art and science in one relaxing experience. Use all your fingers to guide the star flow. You can create 10 different animations depending on the number of fingers touching the screen:

1 – Rocket, 2 – Sparkle, 3 – Energy flow, 4 – Atomic, 5 – 3D freeze, 6 – Circularium, 7 – Fish, 8 – Vortex, 9 – Lasers, 10 – Lightning.

Use different options to create spectacular drawings made of stars. You can load the “Drawing” preset from the “Options” screen.

I will be taking a look at this app. The idea of creativity and relaxation does appeals to me, but the game-play part is a bit less exciting – though it is the trend in the mobile-app space.