This is a special APK for testing pre-release versions of ASTRO File Manager. It can be installed alongside the regular version of ASTRO without interfering with it.
From version ASTRO File Manager BETA 6.3.5.0010:
Improved image viewer - Scroll through you photos with ease.
Hide recent files on your home screen. Go to settings to make Astro safe for work.
We improved search, so you can find your files faster. (Lollipop and higher)
All versions