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

App Hider is a tool that provides a solution to increase your privacy by hiding photos and videos in your gallery. You can also use this to keep your WhatsApp, Instagram, Telegram, Messenger, and other social media apps private.

Aside from concealing apps, this tool can also be used as a cloner. Cloning will enable you to access multiple accounts on one device. This is great for separating your personal and work accounts and switching between accounts when playing games. What makes this different from other cloning applications is that it does not require you to have the original app.