In order to ultimately protect your privacy, you can activate "Advanced Protection", and then no one can uninstall Privacy Guard.
Find the prevention button:"Settings"—"Advanced Protection"

TheMost Trusted and Popular Privacy Protector for Android, keeping your phone safefrom annoying snoopers and prying eyes. With LEO Privacy Guard, you can heave asigh of relief and not worry about: Girlfriend/boyfriend is trying to gothrough all your SMS and call log, when you’re in the shower. Parents/kids arecurious about your gallery and FB status. Colleagues accidentally see privateimages or videos when you let them use your phone.
Whatdoes LEO Privacy Guard do?
AppLock- Just a click to lock all apps. - Simple switch to change multiple modes. -Various ways to cover your apps, Mask on apps, Guard on phone.
PrivacyProtection - Privacy alerts keep you informed of phone safety. - Keep snoopersaway from private pics, videos, SMS and call log.
APPManagement - Uninstall unwanted apps and back up the important ones. - Keepyour data plan and battery usage under control easily.
StunningNew Design - New design for user interface, simple, handy and intuitive. -Stylish themes to decorate your lock screen.
shortcuts- Swipe to all APP with shortcuts - Everything within reach.