Here is the S4 dark calculator for S3 (only Sammy Roms)
After flashing check in system/app to see if permissions are correct for the apk and donīt forget to delete SecCalculator2.apk
Not responsible for anything that happens to your phone!
If you prefer the white version of Arsaw here is the link http://www.mediafire.com/?fc1hfa41fbibek9
Arsaw for the working version of the calculator
Tested and working on Wanam 7.0