Focus

The app comes with 11 preset tags that you can choose from, including art, family, food, friends, nature, pets, travel and more. You can even create tags of your own and pick an icon so they would stand out. The app lets you access all images, GIFs, videos stored on your device and organize them by tags.
 
It also arranges files based on folder and displays the most recent images at the top. It comes with tools for cropping pictures to various sizes and rotating them. You can also share images with friends on social networks or set them as wallpapers. The app has a built-in vault for locking personal pics or hiding entire collections of pictures.