Streamzoo has a new user interface
Streamzoo's latest app update has replaced sz's old user interface — which I think had been designed by an alien from the planet Confuso — with a straightforward menu-driven one. They've also added a "camera" button on every screen, so you can go directly to taking/uploading photos without having to navigate all over the place.
In My Opinion, it's a gigantic improvement. Although I could still ask that the Android "Menu" button pop up the menu.
[The above is based on the Android app. I don't know about the apps for other platforms, but I assume they've also been updated.]
The open-source LightZone Project: http://lightzoneproject.org/