AnyFront Camera
Full manual control over every shot: ISO, shutter speed, white balance, focus and exposure, with a live histogram, focus peaking and zebras.
On iPhone Duo, AnyFront Camera can also use the cover screen to show the person you are photographing something to look at: a photo or video from your library, one of eight built-in animations, or a live mirror of the shot. You choose and control it from the inner screen. The camera is free; the cover-screen features are a one-time in-app purchase.
AnyFront Camera has no account, no ads and no analytics, and it sends nothing anywhere.