Photozig Albums allows you to create Tags for the photos {Intermediate, Advanced}.
Tags can be easily created and associated with your photos. You can work with Tags in the Photos screen or Details screen by clicking on the "More" button and selecting "Tags".
Later on you can choose to display only the photos that are associated with certain tags. Each photo can be associated with as many tags as you wish.
You can filter photos based on Tags criteria by clicking on "Filter" and choosing Tags in the Albums screen or Photos screen.