With this app you could protect app with a password, PIN or pattern. The Android lockscreen is used for that. The protection could not be removed with a simple long press on back-button, like with most other apps. You could even protect not straight startable apps like the package-installer. Donation: You could select a unlimited count of apps.
Defim is the developer of ProtectedApps which can be found in the Tools category. This application has been downloaded and set up by over 5K users and the latest update was released on Aug 23, 2017. The app has the average rating 3.8 on Google Play.
ProtectedApps displays adverts. A lot of users installed this application on their Samsung and HTC devices. It's free of charge to download the installer of ProtectedApps, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 2.3.3 and higher.
It's secure to download the app.