Gallery is an excellent app for organizing your photos.
It is the photos & videos app. photos spaces app. Its really "Great Gallery" app.

Gallery is a free, next generation photo gallery that’s a complete replacement to your native gallery.
Smart Gallery Photo Viewer, Gallery Video Viewer. Enjoy with unlimited gallery video and images for show your friends and others.
You can share your pictures to social networks like Facebook, whatsapp, twitter etc.
Fast refresh gallery collections.
Easily share groups of photos and videos from your gallery, with just a tap.
Best Gallery video player
Smooth gallery user interface
Share to social networks from gallery

Features:
- Event Album
- Photo viewer & photo slideshow effects
- Photo Slide Show