@bramk In iMessage holding down on the camera button opens the camera to begin recording. In Hello holding down on the camera button allows you to quickly view the photo you have received or sent. And yes both people will need to have the app.
I didn't really find this app easy to use. I work in education, so we are looking for easier ways to share photos between shared user iPads. Hello didn't seem like it would save us time and I was just testing out with my family.
@alekplay Well I feel Snapchat is a little confusing with too much sliding and touching just to send a photo to a friend. And plus with Hello photos don't disappear after a few seconds, they only disappear after someone replaces a photo with a new one.
Idea Stash