Safe Calc is the digital equivalent of those fake tins of beans you see which act as a safe house for your valuables. On the outside the free program looks and acts just like a normal Windows calculator, but enter the secret code and it turns into a fiendishly clever secret data store, complete with encryption and password protection. It’s wacky sure enough, and needs no install, which is super dooper. Use it on your USB flash drive for a bit of added safety.
Enter your PIN in memory (key [MS]), the calculator goes into safe mode. Browse the directory and select a file, it stores it encrypted in its own executable file. Erasing memory (key [MC]) delivers the standard calculator mode. Subject of course you enter your PIN, you shall return it, or display, or replaced.