The Humm Buggs app by Machda Toys has been designed to enable the user to operate their Humm Bugg. The App turns on the soft glowing lights in the face of your Humm Bugg, and can also control the unique lullaby for your Humm Bugg. Through the App you are able to play the lullaby once, or have it play three times in a row, what we refer to as Long Play. There are a total of eight different Humm Buggs, Averie Ant, Bailie Butterfly, Billie Bumblebee, Colbie Cricket, Darcie Dragonfly, Lexie Ladybug, Frankie Firefly and Sydnie Centipede.