The description of Simple Gallery
A simple tool used for viewing photos and videos. Items can be sorted by date, size, name both ascending or descending, photos can be zoomed in. Media files are shown in multiple columns depending on the size of the display, you can change the column count by pinch gestures. They can be renamed, shared, deleted, copied, moved. Images can also be cropped, rotated, flipped or set as Wallpaper directly from the app.
The Gallery is also offered for third party usage for previewing images / videos, adding attachments at email clients etc. It's perfect for everyday usage.
The fingerprint permission is needed for locking either hidden item visibility, or the whole app.
Contains no ads or unnecessary permissions. It is fully opensource, provides customizable colors.
This app is just one piece of a bigger series of apps. You can find the rest of them at http://www.simplemobiletools.com