Secret-Files is a tool which helps you to protect your private files and folders. With it you can hide files and folders which you don't want other people to see. So it's a useful tool for people who want to protect their privacy. Besides it support password protection. And at last, it has a friendly and clean UI and it's really easy to use.
Updated on Dec 22 2015
Note: While the software is classified as free, it offers in-App Purchases.