AppLock is a privacy protector app for Android. It can keep your phone safe from annoying snoopers and prying eyes.

Features:
AppLock protects your privacy with your own AppLock pattern:

★ Lock social apps - Protect apps such as Facebook, WhatsApp, Messenger, Vine, Twitter, Instagram, Snapchat, WeChat. No one can peep at your private chat any more.
★ Lock system settings – Prevent malicious use of your settings such as Contacts, SMS, Gallery, Videos, Email and etc.
★ Lock your privacy - AppLock can lock any third-party apps, including Youtube, games, gallery (Gallery Vault), videos, photos, files and etc.

AppLock hides the draw path to make pattern invisible, securing your password to the greatest extent.

AppLock generates dynamically colorful lock screen according to the principal hues of the app being protected.

AppLock also provides small useful toolkits:
★ Help optimize the performance of the phone.
★ Manage the apps, files and photos

AppLock provides the muti lock options. You can select a suitable mode for you.
★ Lock your app at the device screen off
★ Lock your app after exiting the app for 30 secs or 2 mins
★ Lock your app after you minimize it immediately

AppLock provides the uninstall protection which prevents avoiding the uninstallation of the protected apps by others.

AppLock is free, which provides you with the ultimate simplicity and user experience.

How to use:
★ Start app, set the password and the answer of Security Question.
★ Select the app you want to lock in AppLock's app list.
★ Enter the password to unlock the app your choosing locked when you start that.
★ If you forgot the password, it is convenient for you to reset new password by answering the security question you set before.

Note: For android 5.0+, please allow Applock to use usage access permission.
You can first find AppLock and then allow usage access.
If AppLock do not work, please make sure you enable floating window on your android devices (i.e. HuaWei/XiaoMi/Vivo/MIUI/ Yureka) .
Try following methods:
Enter settings--app application, find AppLock and enable the floating window for our AppLock.