The Gallery app is a simple and fast app that can work offline and does not need to connect to the internet to work. This is one of the best free photo gallery and photo manager apps. It works very well on all Android devices.

Gallery allows you to browse, organize, edit, delete, share, and view all your photographs and videos. The app can automatically sort and organize your files by people, categories, date, size, and resolution.

You can also set a password on your pictures and videos to protect them from being deleted or moved. You can also lock your gallery to prevent others from viewing your photos and videos.

Gallery also allows you to create new albums and folders to keep your photos organized. You can also edit and crop photos and videos with the built-in editing tools.