A free app for Android, by Hide Apps NO ROOT.

Notepad Vault 32 Support is a hidden photo vault that can hide photos and videos. It can be accessed through a secret PIN that you have to create the first time you use it. It supports multiple vault profiles, so you can hide different things in different places.

It also provides an interface that allows you to view and manage your photos, videos, and other files, as well as open your locked gallery. You can import your own photos and videos into the hidden gallery, and you can browse hidden pictures and videos through the gallery module.

It has a built-in password function, so you can protect your files with a password, and it supports multiple password types. You can use the password to hide all the apps that are installed on your phone, or just the ones that you want to hide.