SneakyPix is an iPhone app developed by James Skidmore allows you to take high resolution photos and videos. The use of this application is quite simple, just launch it and tap Capture Photosand, now all you need to pretend that you’re calling someone. The important thing here is to switch your phone to silence mode to make all this risk free.
SneakyPix allows you some great features including option to change the resolution of the photos, number of photos to take, and option to change the cover up screen. Whenever you took a picture iPhone will vibrate to tell you that photo taken and saved in the gallery. The amazing thing about this app is that there is a call going on the screen of iPhone just like a normal one when you are using this app, but actually it is a fake call and you can also stop the call by tapping on the End button. Here is the download link.