Excellent

I was looking for an app for helium voice. With that one you get one more than one voice. You can change the speed and the tone of it. Sothe choice if yours : being a bear or being a mouse. Being high or being speed. You can create a new video or change the voice on an existing one.
The only problem is the lengh of the video. Only 45s. Also, its a pity that you cannot mix voices or you cannot edit after recording.

Steyfani about Helium Video Booth Lite, v15.6