HCalculator

"HCalculator" is a fully functional Business calculator app but with a little twist. Once you enter the password(you get to set it on first start of app and can also be changed in future) and press the '=' button then boom you are presented to an interface where you can hide, restore pictures, videos, documents or files with any file extension placed in sdcard.

Features:
1.) Everyone will think it as a simple calculator.
2.) Hide or Restore pictures, videos,documents or any other media type.
3.) View hidden files without restoring them again.
4.) Hide files from the gallery(like pictures and videos wont appear on the album or gallery).
More and more features and improvements will be made available soon. Suggestions are always welcome.
Note:
1. The secret screen's UI may look a little weird on small screen sizes.
2: There is a folder named HCalculator saved in the external Storage which serves the purpose of this app. Please do not delete or mishandle this folder.