ViewPic

A simple picture viewer. Are you a photographer? You may need this app to view pic.
Open file via file explorer (ES File Explorer, AndExplorer) or Gallery share, or enter directory name.
Show private images from current directory.
Double tap change zoom, fling right for next.
Ads supported (low impression)

o Best image quality (HD)
o Very quick and simple
o Locked zoom
o Hide directory in gallery
o Shuffle
o Save image to sdcard
o Keep screen on ;)