Company Two Pilots doo created these great apps:
Funny Digits - Kids Learn Numbers, Addition and Subtraction, Funny Digits Free - Kids Learn Numbers, Addition and Subtraction, Hungry Buddy, Earworm for Toddlers, Earworm Plus, Two Stars Basic, Two Stars Plus, Reaction Pilot, Stopwatch Pilot, Learn Dance Kolo, Game Pilot Lite, Game Pilot Designer, Learn Dance Sirtaki, and others..