AppLock

Using AppLock, you can secure your privacy by setting a password, pattern, or fingerprint lock. The app is available in 45 different languages. AppLock can lock any app of your choice, including Facebook, WhatsApp, Messenger, Snapchat, and Gmail, among others, protecting unauthorized access and guarding your privacy. It can also protect your private pictures and videos by hiding them from your phone's gallery and placing them in a photo and video vault. Additionally, AppLock has a random keyboard and an invisible pattern lock that ensures people can’t see the pin or pattern you use. With AppLock, you don't have to worry about your parents checking your Snapchat or TikTok, friends borrowing your phone to play games with mobile data or someone messing up your settings or data. To use Advanced Protection, you must activate AppLock as a "device administrator."
If you want to change your password, open AppLock, click on Protect, and then Unlock settings. You can open the hidden AppLock in four different ways, namely via Gallery, Widgets, Dial pad, and Browser, using openapplock.com or domobile.com/applock links. With regards to uninstalling AppLock, you can enable Advanced Protection in Protect to stop anyone from uninstalling or killing AppLock without your password, and you can disable it when not in use. If you forget your password, you can update to the latest version, click on the AppLock icon, and then on the icon at the top right corner of the lock page to reset it by entering your security answer or email. AppLock uses Accessibility service to enable power-saving mode and reduce battery usage, but it does so without accessing your private data.