Available voices to select from and change during a call
+ Helium balloon (very high voice)
+ Funny sound (high voice)
+ Man sound (low voice)
+ Scary sound (very low voice)
+ Regular sound (your natural voice)
Available sound effects to select from and change during a call
Cat meow, Moo, Dog bark, Fart, Uzi shots, Werewolf, Boom!, Monkeys, Scary zone, Your mother.
Note that calls are made over the internet by VOIP, make sure you have a strong internet connection before using the app.