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ThunderCam is a camera app that automatically triggers your camera shutter when lighting occurs in the sky. Put your iPhone on a tripod, point it at the sky and let it do the work! Shutter is released at significant change of brightness between following frames.

An app can shoot still and Live Photo, and it supports all available iPhone rear lenses.
LivePhoto is recommended as you can manually pick the best captured frame.

Features:
- automatic photo taking at significant changes in brightness
- still and Live Photo
- wide, ultra wide and telephoto lens