A free program for Android, by Litter Penguin.

With this app, you can lock your Facebook, WhatsApp, Instagram, TikTok, Messenger, WeChat, SMS, etc. with one click, without worrying about unauthorized access. It can lock Facebook, WhatsApp, Instagram, TikTok, Messenger, WeChat, SMS, etc. with one click, and protect privacy.

It is the best way to prevent intruders who want to open your locked apps without your permission. It will help you keep your friends from snooping around when they borrow your phone.

This is the best App Lock for Android phones and tablets. You can also use it on any device that runs Android. It is compatible with most devices, including Android phones, Android tablets, and other Android-powered devices.