Lens is worth it, app isnt.
I have a 5c and the only things that work for me are white balance and the focus/exposure locks... Which I can use the normal phone camera app for. Waste of my money. Also very annoying not being able to use the volume buttons to start/stop recording, as the record button is too small and finicky. Missed out on half the clips I was filming due to the positioning of it.
The lens itself is definitely worth it. If you have a 5c, dont buy the app.
darwinyoung about
Death Lens, v1.0