ProShot

NEW: Try ProShot Evaluator first to see which features your device supports
https://play.google.com/store/apps/details?id=com.riseupgames.proshotevaluator

The screen layouts are excellent. DSLRs could learn a thing or two from the design of ProShot
Engadget

if you can name it, chances are ProShot has it
Gizmodo

CAMERA FEATURES 

•  Auto, Program, Manual, and two fully configurable Custom modes, just like a DSLR*
•  Manual, semi-manual, or automatic control over exposure, flash, focus, ISO, shutter speed, torch, and white balance*
•  Shoot in JPEG, RAW or RAW + JPEG* (RAW = .DNG file)
•  Light Painting mode with infinite shutter and live preview. Watch as your photos develop right before your eyes!
•  Shoot full resolution in 16:9, 4:3, and 1:1
•  Custom Aspect Ratio Mode: shoot in any aspect ratio you want, 21:9, 17:10, 50:3, it's all possible!
•  Timelapse mode with full manual controls
•  Zero-lag bracket exposure up to ±3, in 1/3 stop increments*• Auto ISO option, turns Manual mode into Shutter Priority
•  Manual focus assist
•  Live histogram
•  Front-facing camera with exposure control
•  Zoom with just one finger
•  Fully featured Camera Roll integrated into the viewfinder. View EXIF, support for video playback, media sharing, and delete
•  Grid overlay
•  Level with 2 different modes
•  Adjust JPEG quality, Noise Reduction quality, photo location
•  Shortcuts for GPS, screen brightness, camera shutter, and more
•  Most innovative camera UI ever created

VIDEO FEATURES

•  Up to 4K (3840x2160)
•  60fps, up to 175Mb/s
•  Manual or automatic control
•  Adjustable resolution, frame rate, and bitrate
•  Industry-standard options for 180 degree rule
•  Zoom and change any camera parameter, even during video recording
•  Real-time audio input levels
•  Timelapse video, with full manual control
•  Video light