iKeyMonitor - iKeyMonitor is a mobile app for both iPhone and Android devices that with parental control capabilities and phone monitoring features.
App Lock and Gallery Vault - Wish you could simply lock all your private apps on your smartphone with just a click?
XNSPY - XNSPY is the world’s most trusted cell phone spy software to monitor any smartphone and tablet remotely. It works on a range of devices including Android phones, Android tablets, iPhones and iPads.
Hexlock - Security app locker keeps apps private with smart profiles for any situation
Spyera - Spyera is the name of an undetectable tracking and monitoring application that offer its users the comprehensive set of tools for remote monitoring and tracking of any smartphone.
AppLock (FOSS) - A privacy App lock FOSS application.