Actually, I think a couple of shots (the square ones) were probably shot with the built-in 400 WC 120 roll.
I’ve said it before, and I’ll say it again, this app is fun. It forces you to slow down (a bit, maybe), it makes you wait a bit to see what you shot, and the Contact Sheet thing is pretty cool.
If you like the idea and have $1.99, pick it up. Thirty Six is worth it.