- Lock any apps such as Facebook, WhatsApp, Photos, Call, Contacts and Browser to protect your privacy.- The safest and fastest app lock for android.- Lock gallery, messages, email,browsing history and call history.- Prevent your children from buying unwanted apps and games with AppLock. - No one can find out your secrets and privacy.- Super kernel,take little memory, very fast and no disturb. - Give you most powerful protection.- Support all devices.- Absolutely free.