Tape it Up!
Devsisters Corporation
Truck It Up!
MINDSENSE GAMES
Pop it up
GamemobSoft
Fender Tone
Fender Musical Instruments Corporation
Color It Up
upjers GmbH
Tone Generator
WeDoAndroidApps
Toast it Up
Mucho Games
TMSOFT
Skin Tone
Telo Sudebyo
Tone Sphere
Bit192 Labs