She's 3, and silly, Her sister is Kipper ( Locked Cat ) and ( Locked Cat ) ( Locked cats mean not foudn yet. ) Kipper    in Episode 4 Found a book who talks and tells her if she found or unlocked a cat, She only unlocked Robot  at, Silly Cat Mika & more but she needs to unlock all 500,00 cats, Apple was born at the same date as Kipper, but not the same year, Kipper's 5    Apple helps kipper 

find diamonds and more things now, Robot cat really does nothing, When Apple and Kipper were moving with their mom, Isis and their dad Dylan, They took 

Apple and every one else on a walk and the thing blew up and they ate it and now they can talk