Just noticed it seems to be some sort of tamagotchi clone from what I can see. the yellow/white meter could be growth and the icon to the right an egg. this (unrelated) app uses the same 'notebook' style of backdrop.

https://lh3.ggpht.com/8gjIb24gOSjoLwxYvVgfFfMz9ItAT_0h86QRlY...