Pay attention to ads and in-app purchases while launching Folder Lock. This application is very popular among Samsung and Micromax users. Get the .apk setup package of Folder Lock 2.3.1 for free and read users' reviews on Droid Informer. You will need 15 MB to set up the app that is developed for Android 4.0 and higher.
The app has been scanned for viruses and it has been found completely safe.
The way users see it, this application has some important pluses, they are a nice UI, advanced features, superb performance and good customer support. As users indicate, you can find such disadvantages of Folder Lock as flashing ads, screen freezes and a battery drain.