:( doesn't work – CamWow Retro: Vintage photo booth effects live on camera! Review

It doesn't work well atleast for me I can't take pictures well I can but not if me everything is just black you can't see anything then when you look at it in your camera roll it's black still but in the corner it says cam wow I'm mad and sad about this plz fix this then I give 5 stars :)
Review by Angelbonnie1234 on CamWow Retro: Vintage photo booth effects live on camera!.